LHS = 1-sinA1+sinA(1-cosA)(1+cosθ) = 1-sin²A1-cos²A                  [ a² - b² = ( a + b ) ( a - b ) ] = cos²Asin²A =cosAsinA2 = ( cotA )²      .....

LHS = 1+cosθsinθ+sinθ1+cosθ Taking .....

LHS = cosβ1 + sinβ + 1 + sinβcosβ = 2secβ Now taking LCM of denomerator, we get, cosβ.cosβ + (1 + sinβ)(1 + sinβ)cosβ1 + sinβ = cos2β + 1 + 2sinβ + sin2βcosβ1 + .....

LHS = sinA1+cosA+sinA1-cosA T Taking LCM = sinA1-cosA+sinA1+cosA1-cos²A      [ a² - b² = ( a + b ) ( a - b ) ] = sinA-sinAcosA+sinA+cosAsinAsin²A   [1 - cos²A = sin²A] = .....

The progression of events from the past to the present and into the future is time. Time is an observed phenomenon, by means of which human beings sense and record changes in the environment and in the universe. In case of Simple Interest, time is .....

LHS = secAcosA-tanAcotA =1cosAcosA-sinAcosAcosAsinA          [secA = 1 / cosA; cotA = cosA / sinA; tanA = sinA / cosA] =1cosAcosA-sinAcosAcosAsinA =1cos²A-sin²Acos²A =1-sin²Acos²A      .....

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 The figure consists of three geometric shapes: - A circle at the right  - A cylinder in the middle - A hemisphere at the left Radius (r) = 10.5 cm  Height of cylinder (h) = 40 cm  So:   TSA = area of circle + curved .....

 The figure consists of three geometric shapes: - A circle at the left . - A cylinder in the middle - A hemisphere at the right Height of cylinder (h) = 40 cm Radius of hemisphere (r) = 54 - 40 = 14cm So:   TSA = area of circle + .....

 The figure consists of three geometric shapes: - A circle at the top. - A cylinder in the middle - A hemisphere at the bottom Radius (r) = 14 / 2 = 7 cm = height of hemisphere Height of cylinder (h) = total height of cylinder with hemisphere - .....

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The cloth is covered only in the outer surface so we need to calculate the total curved surface area ( CSA ). For this,  Slant height = l = 25m Radius = r = 14m Now, CSA = =πrl = 227×14×25=1100 m2; Now cost rate = C .....

Total height of the solid = 13cm Diameter of the hemisphere = 14 cm Radius of the hemisphere = (14/2) cm                                         .....

Here is an example. Look it carefully and try your .....

a) 2KClO3→2KCl+3O2 b) 2Ag2O→4Ag + O2  c) C6H12O6 + 6O2 →6CO2 + .....

a. Zn+2H2O+2NaOH⟶Na2Zn(OH)4+H2.  b. Mg + H2O → MgO + H2  c. 2Na + H2  → 2NaH d. CH2 = CH2 + H2→  CH3 - CH3 e) 2Fe+3H2O .....

A catalyst is a material that changes the chemical rate of the reaction without itself being consumed in a reaction.  Having said that, Manganese (IV) oxide is a catalyst that speeds up the decomposition of Hydrogen peroxide (H2O2) .....

a) The chemical in 'A' is hydrogen and 'B' is Granulated Zinc. b)Zn + H2SO4 = ZnSO4 + H2 c) A splint is lit and held near the opening of the tube, then the stopper is removed to expose the splint to the gas. If .....

When a burning magnesium ribbon is inserted in a jar containing nitrogen gas, Magnesium will burn with Nitrogen emitting sparks and a bright white flame just like Oxygen and gives out Magnesium Nitride. (A white .....

It forms various compounds of nitrogen oxide but it is very hard to react nitrogen with oxygen, nitrogen usually forms N2 in nature, N2 has a triple bond and it has to break because the energy of the triple bond of nitrogen is 941 .....

In steam-methane reforming, methane reacts with steam under 3–25 bar pressure (1 bar = 14.5 psi) in the presence of a catalyst to produce hydrogen, carbon monoxide, and a relatively small amount of carbon dioxide. Steam reforming is .....

a) Hydrogen gas is being prepared in the figure. b) Thistle funnel is small. c) ZN + H2So4 = ZNSo4 + H2 d) Pop sound is produced when a matchstick is held near the gas .....

Cow is a domestic animal. Its body is covered with soft and short hair. It is a four footed animal. It has two ears, two eyes, two horns and a long tail. It is found all over the world. It is a very useful animal.  It gives us milk.We get .....

Sustainable development approach is quite important to the people around the globe. The reason behind this are presented in the points below: - Sustainable development helps improve the quality of human life while living within the carrying .....

Use the following formula to calculate the Rate of Natural Increase(RNI). You need to find the CBR from the above and should calculate the following. RNI=CBR-CDR1000×100%  

Aristotle is considered as the first .....

The constitution of Nepal has made the following provisions regarding the rights of women: - Every women shall have equal right to lineage without any gender discriminations.  - Every women shal have the right relating to safe motherhood .....

Here, ∡B = 1/2 of ∡AOC = 60o Again , ∡ABC + ∡ACB + ∡CAB = 180o or, 2∡CAB = 120o [ Since, ∡ ABC = 60o & ∡CAB = ∡ACB, As AB = BC.] Find ∡ CAB Then, ∡CAB = .....

Join B&D  and A&E. Then,  EF = CD              [ Since, FD = CE & adding DE on both.] So, Area  of ∆EFA = Area  of ∆CDB.       [ On equal .....

Here,  1. ∡OTR = ∡PRT   = x (say)        [ Since, OT & OR are radii.] 2. ∡P = ∡ ORQ = y (say)              [ Since, opposite ext.angle of cyclic .....

It is said that mother and motherland are superior to heaven. Definitely, there is nothing to compare with our mother and birthplace. Our parents give birth to us. After birth, gradually we grow in the birthplace. Gradually we learn social norms .....

Here, no(W) = 100 n0(S) = 30 Let, x be the people who like both. So, by the question,       n(S) = 1/3 of n(W) or,  30 + x =  1/3(100 + x) or, 90 + 3x = 100 + x Solve x. Venn .....

Here,  n(U) = n(T U Me U Mu) = 100 n(T) = 60 n(T ∩ Mu) = 32 n(T ∩ Me) = 22 n(Mu ∩ Me) = 20  no(Mu) = 15 no(Me) = 10 n(T ∩ Mu ∩ Me) = ? no(T) = ? We know,  n(T U Me U Mu) = n(T) + no(Mu) + no(Me) + n(Mu .....

These physical factors determine the health of an individual. If the air is polluted, the air contains harmful gases and health status become poor. In contrary, if the environment is clean and fresh, the health will be good. Therefore, health, .....

Here,  Let the present age of  father be x and son be y. From the first case, x = 2y .......................(i) From the second case, (x + 2) + (y + 2) = 104 or, x + y = 100 or, 2y + y = 100          .....

Let, CP of article be x. In first case,  Profit% = 4%. Then, SP1 = CP + P% of CP       = 104x/100      = 26x/25 From the second case, SP = SP1 - Rs.50 = 26x/25 - 50 Then Loss = .....

Heat is a form of energy which exists naturally. We can utilize heat in our daily life by following ways: - heat energy is used to cook food, boil water and make tea. - heat is used for drying clothes. -heat is used to keep our body warm during .....

Nitrogen is the first member of the group .....

The air in our atmosphere is composed of molecules of different gases. The most common gases are nitrogen (78%), oxygen (about 21%), and argon (almost 1%). Other molecules like water vapour are present in the atmosphere as well but in very small .....

We know that Nepal is a multi-ethnic, multi-religious, multi-cultural and multi-lingual country. According to the national census, 2068, people of 125 castes live in this small country. They speak 123 languages. These people follow 10 different .....

Let the number be '10x + y' Now, from first condition, x + y = 11 x = 11 - y  .....(i) Again, from another condition, 10x + y + 45 = 10y + x or, 9y - 9x = 45 or, y - x = 5 or, y = x+ 5 .......(ii) From (i) and (ii), You will .....

Your question is incomplete. Please provide the axis of .....

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