" 20.If "sin((b)/(5)x)=0" and "cos((x)/(5))=0" then "

If 2 sin ((6)/(5) x) = 0 and cos ((x)/(5)) = then

If sin(6/5x) = 0 and cos (x/5) = 0 , then

If sin(6/5x) = 0 and cos (x/5) = 0 , then

If sin(6/5x) = 0 and cos (x/5) = 0 , then

The maximum value of sin(x+(pi)/(5))+cos(x+(pi)/(5)), where x in(0,(pi)/(2)), is attained at

" If "sin^(2)x+sin x cos x-6cos^(2)x=0" and "-(pi)/(2)ltxlt0," then value of "cos2x" is " -3/5 3/5 -4/5 4/5

Find the principal solutions of each of the following equations : (i) sinx=(-1)/(2) "sin "(3x)/(2)=0 (iii) sin(x+(pi)/(5))=0 (iv) cos2x=0 (v) "cos"(5x)/(2)=0 (vi) cos(x+(pi)/(10))=0

If lim_(x rarr0)({(a-5)5x-tan x}sin5x)/(x^(2))=0 then a=...

5sin x-12cos x=-13sin3x,quad if sin phi=(12)/(13), then (a)sin(2x-(phi)/(2))=0(b)sin(x+(phi)/ (2))=0(c)cos(x+(phi)/(2))=0(d)cos(2x+(phi)/(2))=0

If int sin^(5)xdx=(-cos^(5)x)/(5)+a cos^(3)x+b cos x+c then a+b=