Home
Class 11
MATHS
If cosA=cosBcosC and A+B+C=pi, then the ...

If cosA=cosBcosC and `A+B+C=pi`, then the value of cotBcotC is

A

1

B

2

C

`(1)/(3)`

D

`(1)/(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Similar Questions

Explore conceptually related problems

Find the value of (1-cosA)/(1+cosA) .

If cos(A - B) = (3)/(5) and tanA tanB = 2, then the value of cosA cosB is _____

If cosA=4/3 and cosB=12/13 , then find the values of cos(A+B) and sin(A-B) , where (3pi)/(2) lt A, B lt 2pi .

If sinA+sinB=C,cosA+cosB=D , then the value of sin(A+B) =

If A + B =(pi)/(3) and cosA + cosB = 1then the value of cos ((A-B)/2) is_______

If A+B+C=pi, and cosA=cosB*cosC then tanB*tanC has the value equal to (i)1 (ii)1/2 (iii)2 (iv)3

Let A,B,C,D be the angles of a quadrilateral . If they are concyc lic , then the value of cosA+cosB+cosC+cosD is