6-(1+4*9^(4-2cos23))times cos7x=log_(x)7

6-(1+4.9^(4)-2log_(7)3^(3))*log_(7)x=log_(x)7,x in Q

If f(x)=(4cos^(4)x-2cos2x-(1)/(2)cos4x-x^(7))^((1)/(7)) then

g(x)=(4cos^(4)x-2cos2x-(1)/(2)cos4x-x^(7))^((1)/(7)) then the value of g(g(100)) is equal to

Solve :6(log_(x)2-log_(4)x)+7=0

Find number of solutions of the equation sin^(-1)(|log_(6)^(2)(cos x)-1|)+cos^(-1)(|3log_(6)^(2)(cos x)-7|)=(pi)/(2) , if x in [0, 4pi] .

Find number of solutions of the equation sin^(-1)(|log_(6)^(2)(cos x)-1|)+cos^(-1)(|3log_(6)^(2)(cos x)-7|)=(pi)/(2) , if x in [0, 4pi] .