Question

If secA-tanA=5, then sinA =​

Answer 1

Step-by-step explanation:

1/cosA-sinA/cosA=5

1-sinA/cosA=5

1-sinA=5cosA

sinA=1-5cosA

Answer 2

Answer:

Here, SecA-tanA = 5

=> 1-sinA=5cosA

=> (1-sinA)^2= 25cos^2A

=> (1-sinA)=25 (1+sinA)

=> 1-sinA=25+25sinA

=> 26sinA =-24

Hence, sinA =-12/13 ans...

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