Mathematics, 13.04.2021 05:20 vanessa791

1 . Rewrite as a single trig function, then evaluate: 18sin157.5∘cos157.5∘ 2. Use a half angle identity to evaluate.

tan(3π8)

3. Use a sum or difference identity to evaluate.

sin15∘

4. Given: cotA=−247 , where cosA>0 and

cosB=35 where 0

Evaluate:

a) cos2A

b) sinB2

Answers: 1

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1 . Rewrite as a single trig function, then evaluate: 18sin157.5∘cos157.5∘ 2. Use a half angle iden...

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More questions: Mathematics Another questions

1 . Rewrite as a single trig function, then evaluate: 18sin157.5∘cos157.5∘ 2. Use a half angle identity to evaluate. tan(3π8) 3. Use a sum or difference identity to evaluate. sin15∘ 4. Given: cotA=−247 , where cosA>0 and cosB=35 where 0 Evaluate: a) cos2A b) sinB2

Answers

Another question on Mathematics

1 . Rewrite as a single trig function, then evaluate: 18sin157.5∘cos157.5∘ 2. Use a half angle identity to evaluate.

tan(3π8)

3. Use a sum or difference identity to evaluate.

sin15∘

4. Given: cotA=−247 , where cosA>0 and

cosB=35 where 0

Evaluate:

a) cos2A

b) sinB2