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What is simplified trigonometric expression for csc theta sin theta -sin^2 theta

User Karel
by
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2 Answers

2 votes

Answer:

cos² Θ

Explanation:

using the trigonometric identities

• csc Θ = 1 / sin Θ and sin² Θ + cos² Θ = 1, then

1 / sin Θ × sin Θ - sin² Θ = 1 - sin² Θ = cos² Θ



User Gabriel Staples
by
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5 votes

Answer:

cos^2 theta

Explanation:

csc theta sin theta - sin^2 theta

Note that csc theta = 1 / sin theta so we have

(1/ sin theta) * sin theta - sin^2 theta

= 1 - sin^2 theta

= cos^2 theta (answer)

User Maulik Hirani
by
6.7k points