Students and Teachers Forum
1. cash a/c ...dr discout allowed a/c ...dr to getway a/c ...cr 5. bad debt a/c is cdebited and debtor's a/c is credited. 6. free sample a/c is debited and purchase a/c is credited 10. charity a/c is debi and .....
Let us take one example: Whether you run up a flight of stairs in 5 seconds or take a slow walk up the same flight in 40 seconds, you are doing the same amount of work. However, you are doing it at a different rate. When you run up the stairs .....
You may know that, power = work done/time taken Also, work done = force x distance covered. So, we can relate power to distance covered i.e power is directly proportional to distance .....
No, power is not directly proportional to time taken. It is inversely proportional to time taken. You may know that , power = workdone done / time taken which shows that power decreases with increase in time taken to do certain .....
So, K.Emax=eVs where, Vs is the stopping .....
Here,You have given in α/3 and find out in terms of α. So use, Sin α = 3 Sin α/3 - 4 sin³α/3 =3X 1/2(x+1/x)-4 .....
Sentences which express request, order, advice and suggestion are called imperative .....
Modern physics is the post-Newtonian conception of physics. It implies that classical descriptions of phenomena are lacking, and that an accurate, "modern", description of nature requires theories to incorporate elements of .....
You know that dowry is a kind of social evil in which a lot of money or property or some kind of gift is given to the at the time of marriage or after it. This has created a kind of gap among the people in our societies. This system has direcelty .....
Its an open question. We must be practical and as the road is narrower. Savine a life is just mean to lose some more. So I think I won't with great difficulty. What would you .....
To find the wavelengths we need to know formula, Speed = wave lengths x frequency Or, wave lengths= speed / frequency. Now put the values and .....
Now, the question can be written as, 7 / 2 + 1 / 3 ÷ .....
You might have seen a syringe in hospital. When we pull the syringe, we create a partial vacuum inside the tube. The needle of the syringe is exposed to material where the pressure is higher than the inside of the tube of the syringe - so .....
Coal is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers called coal beds or coal seams. Coal is composed primarily of carbon, along with variable quantities .....
A clinical thermometer is calibrated so that it can measure the temperature of a human. Most of these thermometers have liquid inside of them, such as mercury or colored liquids, that react to temperature change . This thermometer is placed under .....
In human all reproduction is sexual. The male gamete is called sperm, and the female gamete is called an egg(ovum). When the gametes join they form a cell called a zygote. Human sperm and eggs .....
Plantesimal hypotheses--This hypotheses was suggested by George Buffon. This hypothesis state that very large amount of matter Was thrown out of the sun due .....
We all know atmospheric pressure decrease with altitude. Therefore when we go to high altitude the pressure within the blood vessels exceeds the outside pressure. This cause the blood vessels to rupture. As a result , a mountaineer suffer nose .....
It is easy to find, You need to factorize the divisible i.e. x2 + 7x + 12 = x2 + 4x + 3x + 12 = x (x + 4) + 3 (x + 4) = (x + 3) (x + .....
Here, slope of 1st line is m1=2-√3 Slope of 2nd line is m2=2+√3 Now, tanθ=+ or -{(m1-m2)/(1+m1m2)} Now put values from above and find tanθ. Then make -ve to find the obstuse angle by taking -ve or .....
Do you know, How to count the numbers ? Let us try, count the numbers below : 1 2 3 4 5 6 7 8 9 10 11 The number which comes before 10 is 9 And the number which come after 10 is .....
Here, We have, 2 < 3 - x < 10 Subtracting 3 from inequality, we get, 2 - 3 < 3 - x - 3 < 10 - 3 or, -1 < - x < 7 Now, multiplying inequality by -1, we get, (-1)(-1) > (-x)(-1) > (-1) 7 or, 1 > x > - 7 [ .....
Here, slope of 1st line is m1=-1/1=-1 Slope of 2nd line is m2=-3/-2=3/2 Now, tanθ=+ or -{(m1-m2)/(1+m1m2)} Now put values from above and find tanθ. Then make -ve to find the obstuse angle by taking -ve or +ve .....
Second condition, Principal = Rs 2000 Time = 2 years Simple interest = compound interest Rate .....
Define set 'b' to get exact answer Alternatively, (a ∪ b) can be {1, 2, 3, 4, 5, 6, 7, .....
Relative density .....
You know that the summer in Nepal lasts from Chaitra to Bhadra. During the first three months the climate is hot and dry. In these months the temperature reaches as high as 40 degees in Terai. But during the last three months of summer the low .....
Now, oranges left = 3900 - 2500 = 1400 Since the cost of 4500 oranges is beared, now the earning will be profit In order to earn a profit of Rs .....
Ram says that he is a boy. Rule: If the reporting verb is in the present or future tense, the tense of the reported speech is not changed. Other changes(change of pronouns, time adverbials, etc.) are made as per the .....
Now, Profit is 20 % of cost price Let cost price be 'x' Then, you may know Selling price = profit + cost price Rs 2400 = (20% of x) + x Solve for the value of .....
Do yoga Exercise every morning or evening Take a break from work/studies once in a .....
Synthetic division can help simplify equations for purposes of doing integrals (which, in turn, is useful in analyzing various systems, calculus makes the world go round). ie; to find quetient, remainder in very short way.
Another .....
Since then the names of the tropical cyclones are assigned from the common list prepared by the member countries. Below is the .....
An angle which measures more than 900, But is less than 1800, is called obtuse angle. Example : 950 , 1200, .....
Now, Using pythagoras theorem, we have, d2 = l2 + b2 or, 1002 = (2b)2 + b2 From above equation, you will get value of b. You will get, length of rectangle, l = .....
For this case, you must know that for every 165m height, temperature decrease by 10C. Now, tell me which place is at higher altitude? Taplejung or Jhapa? Of course taplejung. The height of taplejung is 1,441 m. Whereas that of .....
You may know, sinϴ = p / h cosϴ = b / h In L.H.S substitute the respective values, you will get the .....
Nepal is still a male-dominated society. Women are still considered as subordinate to males. Many places especially in the rural areas the girls .....
If the lines are //, slope are equal, i.e; Slope of line joining (8,2) & (4,1)= Slope of line joining (6,4) & (k,2) or, (1-2)/(4-8) = (2-4)/(k-4) Or, 1/4=-2/(k-4) or, k-4=-8 Or k=...........? calculate .....
Frequency means, no.of complete cycle in one second. Frequency = no.of complete cycle in one second. In equation form, this is expressed as follows. Since the symbol f is used for frequency and the symbol T is .....
R.H.S = 2 tan2ϴ + tan4ϴ 2 tan2ϴ + (tan2ϴ)2 Change tan into sec form = 2 (sec2ϴ - 1) + (sec2ϴ - 1)2 = 2 sec2ϴ - 2 + (sec2ϴ)2 - 2 sec2ϴ + 1) Now try to solve .....
Here, the given two equation are: ax - by = 0 ......... equation1 bx + ay = 0 .......... equation 2 Now, To find the single equation represented by above lines, We should multiply equation 1 and equation 2. (ax - by) (bx + ay) = 0 Now, expand .....
Here, slope of 1st line is m1=2-√3 Slope of 2nd line is m2=2+√3 Now, tanθ=+ or -{(m1-m2)/(1+m1m2)} Now put values from above and find tanθ. Then make +ve to find the acute angle by taking -ve or .....
Since 2 sides of a triangle are equal, The opposite angles of equal sides must be equal Therefore, <D = <F Now, assume <D = x And, <D + <F + <E = 1800 i.e. x + x + 900 = .....
Maple .....
Look at Triangle ACD and triangle BDC, 1. AC = BD [ Given] 2. AD = BC [ Given] 3. CD = CD [ Common side] Hence, Triangle ACD is congruent to Triangle BDC. [ S.S.S axiom] Therefore, Angle PDC = Angle PCD [ corresponding angle of congruent .....
Sarfraz .....
Ray diagram of .....