Students and Teachers Forum
Methuselah was the oldest known tree in the world and its age was 4,789 years until the findings of .....
Two-thirds of the teachers are from .....
Here, A= {x: 8≤ x ≤ 10} = {8, 9, 10} Now, A ⨯ A = {8, 9, 10} ⨯ {8, 9, 10} = {(8, 8), (8, 9), (8, 10), (9, 8), (9, 9), (9, 10), (10, 8), (10, 9), (10, .....
I did not get you! Can you post the image of this .....
Here, Given angle = 80g = (80 x 9/10)o [ Since, 1g = 9/10 .....
A plane's engines are designed to move it forward at high speed. That makes air flow rapidly over the wings, which throw the air down toward the ground, generating an upward force called lift that overcomes the plane's weight and holds it .....
Here, x2 - 2xy + y2 + 5x - 5y + 6 = 0. or, (x - y)2 + 5(x - y) + 6 = 0. or, (x - y)2 + 3(x - y) + 2(x - y) + 6 = 0. or, (x - y)(x - y + 3) + 2(x - y + 3) = 0\ or, (x - y + 3)(x - .....
प्रश्न देखिएन त .....
Here, x2 - y2 - 2xytanA + y2sec2A = 0 or, x2 - y2 - 2xytanA + y2(1 + tan2A) = 0 or, x2 - y2 - 2xytanA + y2 + y2tan2A = 0 or, x2 - 2x.ytanA + (ytanA)2 = 0 or, (x - y .....
Answers: 1. The wind asked leaves to put on dresses of red and gold because summer has gone and winter has set in. 2. The leaves fell over the brown field. 3. At last the leaves fall asleep as snow cover their heads like a blanket. True/false 1. .....
Suggest can be followed by a noun if the meaning is clear from the context. Ex: What kind of ice cream are you having? I suggest chocolate. I suggest Jim for this project. Suggest may be followed by a question word + the .....
Like poetry and dramatic work, music and dance are also form of artistic work. Like poets and dramatists, not everyone can be a musician and dancers. Only those who can think out of the box can be a musician and dancer. We know that dance is .....
Here. 22x+2 . 52x-1 = 8000 or, 22x+2 . 52x-1 = 26 . 53 Now comparing the index of corresponding bases, we get 2x + 2 = 6 ⟹2x = 4 ⟹ x = 2. .....
Thyasphu may be defined as short of a personal diary. It may record the historical events that an individual feel important and serve as an important piece of information for the future. In case of Nepal, since Nepal lacks written history, .....
Southwest Asia is also called Middle East and consists nations like Saudi Arabia, Iran, Iraq, Lebanon, Qatar, Kuwait and others. Most of these nations have a plenty reserve of natural oil. They have desert kind of kind and arid landscape. They .....
प्रश्न सार्नु आवश्यक छैन । खाली ठाउँ भर्ने प्रश्नको वाक्य चाहिँ पूरा लेख्नुपर्छ । बाँकी सबैको .....
Secularism is the principle of separating the nation from any of the religious institutions. .....
Part 3, article 26 of the constitution of Nepal 2072 deals about the "Right to religion" According to this article, every person who has faith in religion shall have the freedom to profess, practice and protect his or her religion .....
We know thw formula, tan 2X = 2tanX / (1- tan²X)
LHS = tanA + 2tan2A + 4/(tan4A)
= tanA + 2tan2A + {4/ (2tan2A)/(1-tan²2A)}
= tanA + 2tan2A + 4(1-tan²2A) .....
The upper quartile (also called Q3) is the number dividing the third and fourth quartile. The upper quartile can also be thought of as the median of the upper half of the numbers. The upper quartile is also called the 75th percentile; it splits .....
Let u = x - y, v = x + y Then sin2x = 3sin2y becomes sin(u + v)=3sin(v - u) Expanding we get or, sinu cosv + cosu sinv = 3(sinv cosu - cosv sinu) or, 4cosvsinu = 2sinvcosu or, 2 .....
Here, n(U) = 105 n(E∩N) = 35 n(EUN)' = 5 no(N) = 5 + 3 No(E). We know, n(EUN) = n(U) - n(EUN)' or, n .....
Is your question complete? Recheck your question .....
It indicates Pressure of a system or surroundings. When we say 760 mm of Hg that means mercury is placed inside a pressure measuring instrument and according to the system exerting pressure, it rises above the datum line or sea level line or .....
If specific heat capacity of water changes suddenly from 4200J/Kg0C to 420 J/Kg0C, then we can have the following advantage and disadvantages: Advantage: We can boil the water in lesser time with less amount of heat as the temperature in .....
If acceleration due to gravity suddenly decreases from 10m/s2 to 5m/s2, that would mean that the Earth's gravitational pull would be much weaker. This will have bad consequences, for example, the Moon wouldn't be in an orbit around .....
If F = ma becomes F= ma2 we shall experience various changes in our daily life. To understand this lets first understand F= ma Here F= ma, which means the force (F) acting on an object is equal to the mass (m) of an object times its .....
Here, 1. ∡B = ∡C [ Base angles of an isosceles triangle ABC.] 2. ∡PAB = ∡C .....
Here, AE = EB = 4cm & CE = 3cm. Let r be the radius of circle, then OB = r and OE = r - 3. Since E is the mid-point of AB so, the line OE drawn from the centre O is perpendicular to the chord .....
A cuboid is a 3 dimensional shape. To work out the volume we need to know 3 measurements: Length, Width, Height. The volume is found using the formula: Volume = Length × Width × Height. Which is usually shortened to: V = l × w .....
Pagoda architecture is multi-storied. Its roofs, originally made of gold, bronze or brass, get narrower from the lower to the higher and the top is usually a golden gajur (pinnacle). The ground, on which building is made, is little raised with .....
Chronicle is defined as the historical account of events arranged in order of time usually without analysis or interpretation.
Here, Profit % = 20% CP = Rs.800 We know, SP = CP + P% of CP = 800 + 20/100 x 800 = Rs.960. Again, Discount = 4% We know, .....
Let CP of mobile = y then, CP of camera = 13000 - y. SP of mobile = CP + P% of CP = y + 20/100 ⨯ y .....
Corruption may be defined as an abuse of authority. Corruption is decay in the decision-making process in which a decision-maker favours one person or one organization for immoral or illegal gain. The two folds causes of corruption in Nepal .....
There is an acute problem of growing population in urban areas. The demands of drinking water in very high but difficult to fulfill. Most of the water-pipes laid down during the time of Ranas have little or no maintenances. Due to the .....
Here, 32x - 4.3x+1 + 27 = 0 or, (3x)2- 4.3x.31 + 27 = 0 Let 3x = a then, or, a2 - 12a + 27 = 0 or, a2 - 9a - 3a + 27 = 0 or, a(a - 9) - 3(a + 9) = 0 or, (a - 9)(a - 3) = 0 Either, a - 9 .....
Here, 16y - 5.4y+1 + 64 = 0 or, (4y)2 - 5.4y.41 + 64 = 0 Let 4y = a, then or, a2 - 20a + 64 = 0 or, a2 - 16a - 4a + 64 = 0 or, (a - 16)(a - 4) = 0 Either, a -16 = 0 ⟹ a = 16 ⟹ 4y = .....
Here, 9x - 6.3x-1 - 3 = 0 or, (3x)2 - 6.3x/31 - 3 = 0 Let 3x = a, then or, a2 - 2a - 3 = 0 or, a2 - 3a + a - 3 = 0 or, a(a - 3) + 1(a - 3) = 0 or, (a - 3)(a + 1) = 0 Either, a - 3 = 0 ⟹ a = .....
Here, 4x - 10 . 2x - 1 + 4 = 0 or, (2x)2 - 10 . 2x /21 + 4 = 0 Let 2x = a, then a2 - 5a + 4 = 0 or, a2 - 4a - a + 4 = 0 or, a(a - 4) - 1(a - 4) = 0 or, (a - 4)(a - 1) = 0 Either, a - 4 = 0 ⟹ a .....
Here, 2y-2 + 23+y = 66 or, 2y/22 + 23.2y = 66 or, 2y ( 1/4 + 8) = 66 or, 2y = 66 x 4/33 or, 2y = 8 or, 2y = 23 or, y = 3. Thus, y = .....
Here, 9x - 12.3x-1 + 3 = 0 or, (3x)2 - 12.3x/31 + 3 = 0 Let 3x = a, then or, a2 - 4a + 3 = 0 or, a2 - 3a - a + 3 = 0 or, a(a - 3) - 1(a - 3) = 0 or, (a - 3)(a - 1) = 0 Either, a - 3 = 0 ⟹ a = .....
Here, 3x + 3x+2 = 10/3 or, 3x + 3x . 32 = 10/3 or, 3x(1 + 9) = 10/3 or, 3x (10) = 10/3 or, 3x = 1/3 or, 3x = 3-1 or, x = -1. ∴ x = .....
Here, 2x + 2 + 2x - 1 = 9 or, 2x .22 + 2x/21= 9 or, 2x (22 + 1/2) = 9 or, 2x(9/2) = 9 or, 2x = 2 or, 2x = 21 or, x = .....
Here, 2x+1 + 2x = 3 or, 2x.21 + 2x = 3 or, 2x(2 + 1) = 3 or, 2x = 3/3 or, 2x = 1 or, 2x = 20 or, x = .....
Here, 2x-1 = (√2)x or, 2x-1 = 2x/2 or, x - 1 = x/2 or, 2x - 2 = x or, x = 2. Thus, x = .....
Here, 3x-1 = 27 or, 3x-1 = 33 or, x - 1 = 3 or, x = .....