Question

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Answer 1

Answer:

Step-by-step explanation:

Hope it will help u

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Answer 2

PLZ refer to the attachment for answer here

Remember

1)Sin^2 + Cos^2 = 1

2)A^2 - B^2 =( A+B) (A-B)

3)Sin A = 1/CosecA

4)CosA = 1/SecA

thanks