urgent ..

formula for sin^{-1}X + sin^{-1}Y , sin^{-1}X -sin^{-1}Y

cos^{-1}X + cos^{-1}Y

cos^{-1}X - cos^{-1}Y

find the derivative of cos root x wrt x from first principle??

integrate 1/(sinx+cosx)?

find the value of x : sin^{-1}x + sin^{-1}(1-x) = cos^{-1}x

2tan^-1x = cos^-1(1-x^2/1+x^2)

how to integrate

f (log(sin x ))dx

integrate : 1/sin^4x+cos^4x dx

if y= [log(x+root x^{2}+1)]^{2 }show that (1+x^{2}) d^{2}y/dx^{2} +xdy/dx =2

what is the value of e raised to infinity ?

urgent ..

formula for sin

^{-1}X + sin^{-1}Y , sin^{-1}X -sin^{-1}Ycos

^{-1}X + cos^{-1}Ycos

^{-1}X - cos^{-1}Yfind the derivative of cos root x wrt x from first principle??

integrate 1/(sinx+cosx)?

find the value of x : sin

^{-1}x + sin^{-1}(1-x) = cos^{-1}x2tan^-1x = cos^-1(1-x^2/1+x^2)

how to integratef (log(sin x ))dxintegrate : 1/sin^4x+cos^4x dx

if y= [log(x+root x

^{2}+1)]^{2 }show that (1+x^{2}) d^{2}y/dx^{2}+xdy/dx =2^{-1}(2 sin2x /1+2cos 2x)-1/2{sin^{-1}(3 sin2x/5+4 cos2x)}^{-1}x+cos^{-1}y+cos^{-1}z=pi and x+y+z=3/2 prove that x=y=zwhat is the value of

eraised to infinity ?