`prod_(n=1)^6(1+tan((npi)/16))(1+tan(((3ln+4)pi)/16))` is equal to - (A) 64 (B) 32 (C) 16 (D) 8

The value of tan((pi)/(16))+2tan((pi)/(8))+4 is equal to

The value of "tan" (pi)/(16) + "2 tan" (pi)/(8) + 4 is equal to

Prove that tan((pi)/(16))+2tan((pi)/(8))+4=cot((pi)/(16))

AA n in N, 49^n+16n-1 is divisible by (A) 64 (B) 49 (C) 132 (D) 32

The product prod_(r=1)^(2n-1)tan(r alpha)( where 4n alpha=pi) is equal to

AA n in N,49^(n)+16n-1 is divisible by (A)64 (B) 49(C)132 (D) 32

int_ (0) ^ ((pi) / (2)) tan ^ (- 1) ((1 + sin x) / (cos x)) dx is (A) pi (B) (3 pi ^ (2)) / (16) (C) (pi ^ (2)) / (8) (D) (pi) / (8)

If lim_(a->oo) 1/a int_0^(oo) (x^2+ax+1)/(1+x^4) . tan^(-1) (1/x) dx is equal to pi^2/k, wherek in N equals to (A) 8 (B) 16 (C) 32 (D) 48

The value of ((tan pi)/(16)+(tan(3 pi))/(16)+(tan(5 pi))/(16)+(tan(7 pi))/(16))^(2) is equal to