Home
Class 12
MATHS
A: In a Delta ABC, if the sides a,b,c ar...

A: In a `Delta ABC`, if the sides a,b,c are in A.P. then `a cos^2""C/2+c cos^2""A/2=3b`
R: In a `Delta ABC`, if A,B,C are in A.P. then `B=pi//3`

A

A is true, R is true and R is correct explanation of A

B

A is true, R is true and R is not correct explanation of A

C

A is true, R is false

D

A is false, R is true

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • PROPERTIES OF TRIANGLES

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 2 (SPECIAL TYPE QUESTIONS) Set -3|7 Videos
  • PRODUCTS OF VECTORS

    DIPTI PUBLICATION ( AP EAMET)|Exercise Exercise 2 (Special Type Questions) SET -D|14 Videos
  • QUADRATIC EXPRESSIONS

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

Similar Questions

Explore conceptually related problems

If in Delta ABC the sides a,b,c are in A.P. Then

In Delta ABC , if a,b,c are in A.P, then r_1,r_2,r_3 are in

In Delta ABC , if a,b,c are in A.P, then tan""A/2 tan""C/2 =

In Delta ABC , if a,b,c are in A.P, then cos((A-C)/2)cosec(B/2)=

In Delta ABC , If a , b, c are in A.P. then Cot. A/2 Cot. C/2 =

In Delta ABC , if A,B,C are in A.P then (a+c)/sqrt(a^2-ac+c^2)=

If a,b,c are in A.P. Then cos "" ( A-C)/( 2) cosec ""(B)/(2) =

If in a Delta ABC, a, b, c are in A.P . Then cos ((A- C)/( 2)) is equal to

In Delta ABC , if tan A, tan B, tan C are in H.P., then a^2,b^2,c^2 are in