Q.21 B-A 2 2 If cos A = m cos B, then- (A) cot A+B m+1 m-1 A+B m +1 (B) tan 2 A+B m +1 (C) cot m-1 (D) None of these FIFTET В- А 2 A-B

Similar Questions

Explore conceptually related problems

If cos A=m cos B, then cot((A+B)/(2))=(m+1)/(m-1)tan((B-A)/(2))

If cos A = m cos B, then prove that cot frac (A+B)(2)= (m+1)/(m-1) tan ((B-A)/2) .

If cos A=mcosB ,\ t h e ncot((A+B)/2)cot((B-A)/2) adot\ (m-1)/(m+1) b. (m+2)/(m-2) c. (m+1)/(m-1) d. none of these

If cos A=m cos B then prove that cot((A+B)/(2))=(m+1)/(m-1)tan((B-A)/(2))

If quad cos A=m cos B, then (cot(A+B))/(2)(cos(B-A))/(2)a*(m-1)/(m+1) b.(m+2)/(m-2) c.(m+1)/(m-1)d .none of these

If sin A = m sin B, "prove that" "tan" (A-B)/2 = (m-1)/(m+1) "tan" (A+B)/2

If cos A=m cos B , then write the value of cot((A+B)/2)cot((A-B)/2dot)

If cos A=m cos B, then write the value of (cot(A+B))/(2)(cos(A-B))/(2)

If A+B+C =pi and cos A = cos B cos C then cot B. cot C = ............. A) 1/3 B) 1 C) 2 D) 1/2