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In DeltaABC,ifcotA,cotB,cotC be in A.P. ...

In `DeltaABC,ifcotA,cotB,cotC` be in A.P. then `a^(2),b^(2),c^(2)` are in

A

H.P.

B

G.P.

C

A.P.

D

A.G.P.

Text Solution

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The correct Answer is:
C
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TARGET PUBLICATION-TRIGONOMETRIC FUNCTIONS -Competitive Thinking
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  12. In DeltaABC,cosecA(sinBcosC+cosBsinC)=

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  13. IN triangleABC, (cosC+cosA)/(c+a)+(cosB)/(b)=

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