Home
Class 12
MATHS
Let A and B denote the statements A:co...

Let A and B denote the statements
`A:cosalpha+cosbeta+cosgamma=0" "B:sinalpha+sinbeta+singamma=0`
If `cos(beta-gamma)+cos(gamma-alpha)+cos(alpha+beta)=-(3)/(2)`, then :

A

A is false and B is true

B

both A and B are true

C

both A and B are false

D

A is true and B is false

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • DE MOIVRE'S THEOREM

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 2 SET-1|5 Videos

  • DE MOIVRE'S THEOREM

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 2 SET-2|3 Videos

  • DE MOIVRE'S THEOREM

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 2 SET-4|3 Videos

  • COORDINATE SYSTEM (3D)

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 2 (SPECIAL TYPE QUESTIONS) (SET- 4)|3 Videos

  • DEFINITE INTEGRATION

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 2 (SPECIAL TYPE QUSTIONS) CHOOSE THE CORRECT ANSWER FROM THE ALTERNATIVES 1,2,3 OR 4 GIVEN (SET-4)|8 Videos

Similar Questions

Explore conceptually related problems

Let A and B denote the statements A: cos alpha + cos beta + cos gamma=0, B:sin alpha + sin beta + sin gamma=0 , If cos(beta - gamma) + cos(gamma - alpha) + cos(alpha - beta)=-3/2 , then

If cosalpha+cosbeta+cosgamma=0=sinalpha+sinbeta+singamma then cos(2alpha-beta-gamma)+cos(2beta-gamma-alpha)+cos(2gamma-alpha-beta)=

If cosalpha+coabeta+cosgamma=0=sinalpha+sinbeta+singamma then cos(alpha+beta)+cos(beta+gamma)+cos(gamma+alpha)=

If cosalpha+cosbeta+cosgamma=0=sinalpha+sinbeta+singamma then sin(2alpha-beta-gamma)+sin(2beta-gamma-alpha)+sin(2gamma-alpha-beta)=

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

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

If cosalpha+cosbeta+cosgamma=0=sinalpha+sinbeta+singamma" then "cos3alpha+cos3beta+cos3gamma