(cos3x)/(cos x)=(1)/(3)" for some angle "x,0<=x<=(pi)/(2)," then the value of "(sin3x)/(sin x)" for same "x," is "

IF (cos3x)/(cos x)=(1)/(3) for some angle x, then the value of (sin3x)/(sin x) for some x, is

If (cos3x)/(cosx)=1/3 for some angle x,0<=x<=pi/2 then the value of (sin3x)/(sinx) for some x is

If (cos3x)/(cosx)=1/3 for some angle x,0<=x<=pi/2 then the value of (sin3x)/(sin2x) for some x is

Which of the following is/are correct? (A) cos(cos pi)=cos(cos0)(B)cos x+(1)/(cos x)=(3)/(2) for some value of x(C)sqrt(1+102sqrt(1+99.101))=101(D)sin(1)-cos(1)<0

(cos3x-cos x)/(cos x+cos3x)

cos3x+cos2x+cos x=0

lim_(x rarr0)(cos3x-cos x)/(x^(2))cos3x-cos x lim x?0

Some examples Type: 1 (1) (sin5A-sin3A)/(cos5A+cos3A)=tan A(2)(sin3x+sin x)sin x+(cos3x-cos x)cos x=0 (3) Prove that cot4x(sin5x+sin3x)=cot x(sin5x-sin3x)

cos3x-sin2x=0