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Sindrei [870]
4 years ago
13

Please help if you know trig, will give brainliest! Thank you!

Mathematics
2 answers:
Stells [14]4 years ago
8 0

Answer:

sin^2(a) I believe. Delete my response if needed.

Step-by-step explanation:

torisob [31]4 years ago
7 0

tan²(<em>α</em>) (2 cos²(<em>α</em>) + sin²(<em>α</em>) - 1)

Recall that sin²(<em>α</em>) + cos²(<em>α</em>) = 1 for all <em>α</em>. Then sin²(<em>α</em>) - 1 = -cos²(<em>α</em>) :

tan²(<em>α</em>) (2 cos²(<em>α</em>) - cos²(<em>α</em>))

tan²(<em>α</em>) cos²(<em>α</em>)

Rewrite tan(<em>α</em>) = sin(<em>α</em>) / cos(<em>α</em>) :

(sin(<em>α</em>) / cos(<em>α</em>))² cos²(<em>α</em>)

(sin²(<em>α</em>) / cos²(<em>α</em>)) cos²(<em>α</em>)

Cancel the factors of cos²(<em>α</em>) :

sin²(<em>α</em>)

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