" 5."cos^(-1)[(1-x^(2n))/(1+x^(2n))]

Prove that cos^(-1)((1-x^(2n))/(1+x^(2n)))=2 tan^(-1)x^n

Prove that cos^(-1)((1-x^(2n))/(1+x^(2n)))=2tan^(-1)x^(n),0

Differentiate the following function with respect to x:cos^(-1)((1-x^(2n))/(1+x^(2n))),0

If y=cos^(-1)((x^(2n)-1)/(x^(2n)+1)))," then "(1+x^(2n))y_(1)=

Differentiate ' cos^(^^)(-1)((1-x^(^^)(2n))/(1+x^(^^)(2n)),backslash backslash0

(d)/(dx) {Cos ^(-1) ""( x ^(2n)-1)/(x ^(2n) + 1) }=

Simplify the following: (3^(n)x9^(n+1))/(3^(n-1)x9^(n-1)) (ii) (5x25^(n+1)-25x5^(2n))/(5x5^(2n+3)-(25)^(n+1))

If x^(2)-x+1=0 then the value of sum_(n=1)^(5)[x^(n)+(1)/(x^(n))]^(2) is:

lim_(x rarr1)((1-x)(1-x^(2))...(1-x^(2n)))/({(1-x)(1-x^(2))...(1-x^(n))}^(2)),n in N, equals ^2nP_(n)(b)^(2n)C_(n)(c)(2n)!(d) none of these

If x^(2)-x+1=0 then the value of sum_(n=1)^(5)(x^(n)+(1)/(x^(n)))^(2) is