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3 years ago

5

Sin^2 θ - secθcosθ + cos^2 θ =

1 answer:

ivanzaharov [21]3 years ago

4 0

Answer:

0

Step-by-step explanation:

sin²θ + cos²θ = 1

secθcosθ = (1/cosθ)cosθ = 1

1 - 1 = 0

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