Math, asked by dakshjain2806, 2 months ago

If 7 sinA -24 cosecA= 0 then find the value of secA

Answers

Answered by souravkonar258
0

Answer:

7sin2θ+3cos2θ=4

⇒7sin2θ+3(1−sin2θ)=4

⇒7sin2θ+3−3sin2θ=4

⇒4sin2θ=1

⇒sin2θ=41

⇒sinθ=21

⇒sinθ=sin30∘

⇒θ=30∘

L.H.S =secθ+cosecθ

          =sec30∘+cosec30∘

          =32+2

          = R.H.S

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