" 10."(a)/(x^(4))-(b)/(x^(2))+cos x

Lt_(x to 0)(64)/(x^(4))(1-"cos"(x)/(2)-"cos"(x)/(4)+"cos"(x)/(2)."cos"(x)/(4))=

Prove that sin x=2^(10) sin((x)/(2^(10))) cos (x/2) cos (x/2^(2))......cos((x)/(2^(10))) .

" Let "a=min{x^(2)+2x+3,x in R}" and ", b=Lt_(x rarr0)(64)/(x^(4))[1-cos(x/2)-cos(x/4)+cos(x/2)cos(x/4)] then find the value of a and b

Let a=min{x^(2)+2x+3,x in R} and b=lim_(xto0)(64)/(x^(4))[1-cos(x/2)-cos(x/4)+cos(x/2)cos(x/4)] then

Find the derivative of a/x^4 - b/x^2 + cos x

int(cos4x-1)/(cot x-tan x)dx is equal to (A)(1)/(2)ln|sec2x|-(1)/(4)cos^(2)2x+c(B)(1)/(2)ln|sec2x|+(1)/(4)cos^(2)x+c(C)(1)/(2)ln|cos2x|-(1)/(4)cos^(2)2x+c(D)(1)/(2)ln|cos2x|+(1)/(4)cos^(2)x+c

If f(x)sin x cos xdx=(1)/(2(b^(2)-a^(2)))ln f(x)+c, then f(x) is equal to (1)/(a^(2)sin^(2)x+b^(2)cos^(2)x)(b)(1)/(a^(2)sin^(2)x-b^(2)cos^(2)x+b^(2)cos^(2)x+b^(2)cos^(2)x)(d)(1)/(a^(2)cos^(2)x-b^(2)cos^(2)x)

If y=(1)/(sqrt(a^(2)-b^(2)))cos^(-1)((a cos x+b)/(a+b cos x)), then (d^(2)y)/(dx^(2))=(i)(b sin x)/((a+b cos x)^(2))( ii) -(b sin x)/((a+b cos x)^(2))( iii) (b cos x)/((a+b cos x)^(2))( iii) -(b cos x)/((a+b cos x)^(2))

int(a^(2)sin^(2)x+b^(2)cos^(2)x)/(a^(4)sin^(2)x+b^(4)cos^(2)x)dx