" (b) "sin(1)/(4)(b+x)+cos(1)/(4)(b-x)

int sin((1)/(4)(b+x))+cos((1)/(4)(b-x))dx

lim_(x rarr1)(a sin(x-1)+b cos(x-1)+4)/(x^(2)-1)=-2, then |a+b|

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 (cos^(4)A)/(cos^(2)B)+(sin^(4)A)/(sin^(2)B)=1 then prove that (i)sin^(2)A+sin^(2)B=2sin^(2)A sin^(2)B(ii)(cos^(4)B)/(cos^(2)A)+(sin^(4)B)/(sin^(2)A)=1

int(cos9x+cos6x)/(2cos5x-1)dx=A sin4x+B sin x+C, then A+B is equal to : ( A) (1)/(2)(B)(3)/(4)(C)2(D)(5)/(4)

sqrt(2)cos A=cos B+cos^(3)B, and sqrt(2)sin A=sin B-sin^(3)B then sin(A-B)+-1(b)+-(1)/(2)(c)+-(1)/(3)(d)+-(1)/(4)

Differentiate sin^(-1)((a+b cos x)/(b+a cos x)),b>a with respect to x:

If the equation sin x+cos(k+x)+cos(k-x)=2 has real solutions,then sin k can be(A)(1)/(4)(B)(1)/(sqrt(2))(C)(3)/(4)(D)-(3)/(4)