Home
Class 12
MATHS
Single Choice Questions: 1.Let 0<=al...

Single Choice Questions: 1.Let `0<=alpha, beta, gamma, delta,<=pi` where `beta` and `gamma` are not complementary such that `2cos alpha+ 6 cos beta+7 cos gamma+9 cos delta=0` and `2 sin alpha- 6 sin beta+7 sin gamma-9 sin delta=0` if`cos(alpha+delta)/cos(beta+gamma)=m/n`when m and n are relatively prime positive numbers, then the value of `(m+n)` is equal to (A)11 (B)10 (C)9 (D)7

Promotional Banner

Similar Questions

Explore conceptually related problems

Single Choice Questions: 1.Let 0<=alpha, beta, gamma, delta,<=pi where beta and gamma are not complementary such that 2cos alpha+ 6 cos beta+7 cos gamma+9 cos delta=0 and 2 sin alpha- 6 sin beta+7 sin gamma-9 sin delta=0 ifcos(alpha+delta)/cos(beta+gamma)=m/nwhen m and n are relatively prime positive numbers, then the value of (m+n) is equal to (A)11 (B)10 (C)9 (D)7

If cos alpha + cos beta + cos gamma = 3 then sin alpha + sin beta + sin gamma =

cos (alpha + beta) cos gamma-cos (beta + gamma) cos alpha = sin beta sin (gamma-alpha)

If cos alpha+cos beta+cos gamma=0 and also sin alpha+sin beta+sin gamma=0 then prove that

If cos alpha + cos beta + cos gamma = 0 = sin alpha + sin beta + sin gamma then cos ^ (2) alpha + cos ^ (2) beta + cos ^ (2) gamma is

If cos (alpha + beta) sin (gamma + delta) = cos (alpha - beta) sin (gamma - delta) then:

sin alpha, cos alpha, cos (alpha + delta) sin beta, cos beta, cos (beta + delta) sin gamma, cos gamma, cos (gamma + delta)] | = 0

If (alpha+beta+gamma+delta)=pi then sum cos alpha cos beta-sum sin alpha sin beta=