Question

if sinA= cosA , then find the value of sin2 A + tan2A
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Answer 1

Answer

cos2A

Step-by-step explanation:

sin2A +sin2A÷cos2A [tanA=sinA÷cosA]

sin2A + sin2A÷sin2A [sinA=cosA]

sin2A+1

cos2A [sin2A+1 =cos2A]

Answer 2

sin A = cos A

So ,

sin²A + tan²A

=> sin²A + sin²A/cos²A

=> sin²A + 1

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