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2 years ago

Express the trigonometric ratios sinA in term of cosA

Mathematics

1 answer:

MariettaO [177]2 years ago

8 0

Answer:

sinA = ± $\sqrt{1-cos^2A}$

Step-by-step explanation:

Using the Pythagorean identity

sin²A + cos²A = 1 ( subtract cos²A from both sides )

sin²A = 1 - cos²A ( take the square root of both sides )

sinA = ± $\sqrt{1-cos^2A}$

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Express the trigonometric ratios sinA in term of cosA​

Express the trigonometric ratios sinA in term of cosA