Home
Class 12
MATHS
If sinalpha + sinbeta + singamma = 3, th...

If `sinalpha + sinbeta + singamma = 3`, then `cosalpha + cosbeta + cosgamma` equals :

A

0

B

1

C

2

D

3

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRIC RATIOS, IDENTITIES AND EQUATIONS

    MODERN PUBLICATION|Exercise MULTIPLE CHOICE QUESTION(LEVEL-II)|86 Videos
  • TRIGONOMETRIC RATIOS, IDENTITIES AND EQUATIONS

    MODERN PUBLICATION|Exercise LATEST QUSTIONS FROM AIEEE/JEE EXAMINATIONS|8 Videos
  • THREE DIMENSIONAL GEOMETRY

    MODERN PUBLICATION|Exercise Recent Competitive Questions (RCQs)|10 Videos
  • UNIT TEST PAPER NO - 4

    MODERN PUBLICATION|Exercise SELECT THE CORRECT ANSWER|25 Videos

Similar Questions

Explore conceptually related problems

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

Let alpha, beta be such that pi lt=alpha lt=beta lt=3pi if sinalpha + sinbeta = -21/65 and cosalpha + cosbeta = -27/65 , then the value of cos""(alpha - beta)/65 is :

If alpha, beta, gamma and delta be four angles of a cyclic qardrilateral, then the value of : cosalpha + cosbeta + cosgamma + cosdelta is :

If A=[(cas alpha, sinalpha),(-sinalpha,cosalpha)], AA'=

IF {:|(sinalpha,cosbeta),(cos alpha,sin beta)|=1/2 , where alpha and beta are acute angles then write the value of alpha + beta.

If alpha,beta,gammain(0,pi/2) , then (sin(alpha+beta+gamma))/(sinalpha+sinbeta+singamma) is :

If the points a(cosalpha+hatisingamma),b(cosbeta+hatisinbeta) and c(cosgamma+hati sin gamma) are collinear, then the value of |z| is _____ where z=bc sin(beta-gamma)+ca sin(gamma-alpha)+ab sin(alpha+beta)+3hati