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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

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The correct Answer is:
D
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Knowledge Check

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    A
    ` B gt 60 ^(@) `
    B
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    D
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    A
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    B
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    C
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    D
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