We have,  1 : 2 = 1/2=x/2x  [Representing 1/2 in the form of variables] Since you will have to divide  90o in  1:2. Then, x+2x= 90o Now, find the value of x and 2x respectively, which is the answer. Similarly, do same .....

We have,  1/2=x/2x  [Representing 1/2 in the form of variables] Since you will have to divide Rs.84 in 1:2 Then, x + 2x=Rs. 84 Now, find the value of x and 2x respectively, which is the .....

What i did that was .....

The radio waves transmit the signals from the control station to the aeroplane. It gives nevigation (direction) to the pilot while flying the plane in the air. Without navigation, pilots can not find their actual routes in the air. So, radio wave .....

It depends on the type of the wave.  Normal visible light waves can not pass through brick and wood but can pass through glass. It is because, glass is a transparent body while brick and wood are opaque.  Light waves pass easily through .....

I send you a rule of simplification , please look it  and try . Easy and simple way to remember BODMAS rule!!

B → Brackets first (parentheses)

O → Of (orders i.e. .....

Let me give you a simple instruction on how you can make tea at your home: 1. Bring cups(depending on a person)of water to boil.  2. Add tea powder or leaves in it. 3. Add milk and boil it over medium flame for 6-7 minutes or until bubble .....

Mammals include human and other animals like monkey, bear, tiger, seal, lion etc whereas Reptiles include animals like crocodile, snake, lizard, turtle .....

This was many millions of years before the first modern humans, Homo sapiens .....

To solve by matrix method,  We nned to write the given equations in   ax + by = c form. So, 2 ( x + 1) = 3 ( y - 1 ) or, 2x + 2 = 3y - 3  or, 2x - 3y = - 5 ........................i) And , 3 ( x + 2 ) = 3 ( y  +  1 .....

To prove it, we have to use formula  SinC - SinD = 2Cos[(C+D)/2]Sin[(C-D)/2]   and SinC + SinD = 2Sin[(C+D)/2]Cos[(C-D)/2]. To do this change cos to sin. i.e; [ cos14 - sin14] / [cos14 + sin 14]= [ cos ( .....

.....

.....

Given ;  If tanθ = 5 /6 and tanβ = 1/ 11 We need to prove prove that θ + β = πc/ 4  . We know Tan( θ +β ) = [ tanθ +tan β] / [ 1 - tanθ tan β]     .....

The UN conducted the concention to provide the access to the sea. The Convention on Transit Trade of Land-locked States is a multilateral treaty. This addresses international rules allowing for land-locked countries to transport goods to and from .....

We have given, SP of  mobileRs. 22550 at a profit of 10 % So,  SP = CP + P% of CP or, 22550 = CP + 10 / 100 x CP Find CP Again take SP =  Rs. 21422.50. Now compare CP  and SP.  If CP> SP, find loss. If .....

Here I send a same question but different name, so try to do your question by changing name. Proof of theorem:

Proof:

let P is middle point of line segment AC

In triangle ABC M is mid point of AB and P is .....

Here, △ ABC and  △CDE are similar, because; <ABC =< BCE , < BAC = < CDE and < ACB = < DEC ( remaining angles of two triangles] Now taking ratios of corresponding sides of corresponding sides,  AB / CE = AC .....

In the given equation,PQ2 + SR2 = QR2 + PS2 substitute the respective values and you will get your required .....

Here is one of the poems on the topic "Mother Earth". Mother earth, our mother earth She is the one who gives us birth.  The tree, soils, mountains, and hills All are one by one getting killed. Mother earth, our mother .....

We have given LHS = 16.cos ( 2π/15).cos (4π/15). cos (8π/15).cos (14π/15)  Divide and multiply by sin 2π/15  =16.cos ( 2π/15).cos (4π/15). cos (8π/15).cos (14π/15)  =8 ( 2 sin (2π/15)..cos ( .....

LHS = cos(2π/7) * cos(4π/7) * cos(8π/7)   Multiply and divide by 8*sin(2π/7) & grouping   = {1/8*sin(2π/7)}*[{2*sin(2π/7)*cos(2π/7)}...  = .....

Let us take LHS and simplify it to get RHS. So,   Multiply and divide by 8sin(2π/7) & grouping  = {1/8 sin(2π/7)}[{2sin(2π/7)cos(2π/7)}...   = {1/8 sin(2π/7)}[2sin(4π/7)cos(4π/7) .....

.....

.....

.....

We have given,  ( vector x  +  vector y )2 = ( vector x  -  vector y )2 or, x2 + 2 vector x . vector y + y2 = x2 - 2 vector x . vector y + y2  0r,  4 vector x . vector y = .....

परिबेश्, तेही कारणले तिहारको आन्तिम दिन यमराजको पूजा गर्ने गरिन्छ .....

The molecular formula of potassium chlorate is KClO3.  The molecular formula of potassium chloride is KCl.  And, the molecular formula of oxygen is O2.  So, the chemical equation for this reaction is :  2KClO3  .....

Please check the question,  We have given  If Tanθ = 1 /7 and Tanϕ = 1/ 3 , prove that Cos 2 θ = Sin 4 θ But, there is no   ϕ   in the proving .....

Here, < A = x / 2  Since, inscribe angle is half of central angle on same arc. Ref.<BOC = 360 -  x. Now in qd,ABOC,  x/2 + 30 + ( 360 - x) + 40 = 360            Sum of angles of a qd. is .....

The Mha Puja is done in a special mandap (decorated by flowers, garlands, sweets, meat, lentil and fruits) for each, by being offered a Shagun (which consists of fried eggs, fish, fruits and local alcohol) by the female .....

Here,  Area of surface (A) = 2 m2. Pressure exerted (P) = 400 Pa Force applied (F) = ? We have,                    P = F/A             Or, 400 .....

Here,  Force applied (F) = 300N Area of surface (A) = 1.5 m2. Pressure exerted (P) = ? We have,                    P = F/A             Or, P = .....

Input work is the work done by the effort in a machine.  It is the product of effort and the effort distance (E x E.D.) Some of the input work may be wasted by friction and the output may be .....

In a machine, output work is the effective work done while lifting the load.  It is the product of load and the load distance (L x .....

Here,  Effort (E) = 4 N. Load (L) = 20 N.  Effort distance (E.D.) = 5 m.  Load distance (L.D.) = ? From the principle of simple machine, we have,        L x L.D. = E x E.D. Or, 20 N x L.D. = 4 N x 5 m Or, .....

Let the weight of Neha be load and the weight of Reha be effort.  Then,  Load (L) = 360 N. Load distance (L.D.) = 60 cm.  Effort distance (E.D.) = 40 cm.  Effort (E) = ? From the principle of lever, we have,    .....

We cut vegetables with a knife.  It is application of pressure.  We stitch clothes with a needle.  It is application of pressure.  We use pressure cooker to cook food faster.  It is application of pressure.  The .....

Sadikshya, you can see mother and her children brushing their teeth. And, that is like teaching them the importance of good health. This is also one of the roles the parents can play for the quality of life of their children. This is also one .....

Let the marked price (MP) be x.  When 10% discount is given: Discount (D) = 10% of MP.                 =  10    ⨉  x               .....

.....

For this, we can use the chain rule, Rs. 100 (IC) = Rs. 160 (NC)  1 Euro = Rs. 95 (NC),  Rs. 9500 (IC) = y Euro So, using chain rule, 100 x 1 x 9500 =  160 x 95 x  y  Solve and get .....

For this problem, we can use chain rule method, i.e;   $ 5 =  pound 4    Rs.225 =  $ 3     x pound  =  Rs. 5625 So, x X 225 X 5 =  5625 X 3 X 4  or, x =   5625 X 3 X 4 / .....

For the question (b),  i) 3 ∈ A ii) 4 ∈ B iii) 26 ∉ C iv) 8 ∈ B v) 5 ∈ A vi) 6 ∉ C vii) 21 ∈ D viii) 18 .....

The answers to the above questions are; A = {2, 4, 6, 8, 10} B = {2, 3, 5, 7, 11, 13, 17, 19, 23} C = {-1, 0, 1} D = {L, O, Y, A} E = {O, I, E} F = {1, 2, 3, 4, 6, 9, 12, 18, .....

Then, use the formula, η = MA/VR x 100%, to calculate the efficiency (η). You have already calculated the value of MA, and the value of VR (velocity ratio) is given as 20. Substitute the values of MA and VR in the above formula to .....

If you move the card slowly, then static friction will move the coin along with the card.  But if you move the card quickly, the much lower kinetic friction will be acting: the coin will move, but not as quickly as the card. Now if you .....

's' is a single unit.  It is not composed of any other unit.  We can not express it in terms of other units.  So, it is a basic unit.  While, the unit 'm/s' is composed of two units - 'm' and .....

As we know, radius OA is perpendicular to tangent AP So triangle OAP is right angle triangle. hence we can use pythagoraus theorem Let PB = y, then OP = 3 + y OP 2 = AP2 + OA2 or, ( 3+ y)2 = 42+ 32 Now simplify and get .....