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Popular >

simplify tan(a-90)

Solution

simplify

tan (a - 9 0^{\circ})

Solution

- cot (a)

Solution steps

tan (a - 9 0^{\circ})

Rewrite using trig identities

= - \frac{cos ( a )}{sin ( a )}

Rewrite using trig identities

= - cot (a)

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Frequently Asked Questions (FAQ)

What is tan(a-90) ?
The solution to tan(a-90) is -cot(a)