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1-Prove the identity: cot (theta)+1/ cot (theta)= 1+ tan (theta) 2-prove the identity tan (theta)((tan(theta)+cot(theta))=sec^2(theta) 3- use an addition identity to find the exact value

1-Prove the identity: cot (theta)+1/ cot (theta)= 1+ tan (theta)

2-prove the identity tan (theta)((tan(theta)+cot(theta))=sec^2(theta)

3- use an addition identity to find the exact value of sin 75 degree

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