#4 tells me the answer is not india
Kenya and Ethiopia likely do not have many glaciers (Kenya might) Plus they are not close to Bangladesh
D Nepal
Can't see your Q ..... please post directly to this site ....not a web link please ....
sinx find 'x'
arcsin ( sinx) = x
Start with cos x which has amplitude of 1
refelect it
- cos x
amplitude of 9
- 9 cos x
verical shift of - 11
- 9 cos x - 11
period 12pi/7 2 pi / 12 pi/7 = 7/6
-9 cos( ( 7/6)x ) - 11
Please do your own homework, Silly !
The derivative of the position function gives the velocity function
2 t^3 + 5 t -2 derivative = 6 t^2 + 5
Note that 4x^2 -1 = (2x-1)(2x+1) multiply BOTH sides of the equation by this to get
2x+1 + 2x-1 + 7 = 4x^2 -1 simplify
4x + 7 = 4x^2 -1
4x^2-4x-8 = 0 Quadratic Formula yields x = 2 or -1
Post it as another Q......I will help if I can....maybe someone else will....
f(x) = (x – 11)(x + 13) = x^2 +2x-143 the 'antideriviative' is the same as the 'integral'
1/3 x^3 + x^2 - 143x + c This does not match the answers you have posted as choices (closest to third one)
cos (2x) = cos^2 - sin^2 or 2 cos^2 x -1
sooo 2 cos^2 x -1 = cos x
2 cos^2 x - cos x - 1 = 0 let x = cos x then use quadratic formula to find x = 1 or - 1/2
cos x = 1 or -1/2 then from 0 to 2pi this is 0 2 pi and 2pi/3 4pi/3
