Evaluate cos^2 25+cos^2 65/sin^2 39+sin^2 51 + sin^2 30

1.	Evaluate cos^2 25+cos^2 65/sin^2 39+sin^2 51 + sin^2 30
Answer» ANSWER: COS^225+cos^265/SIN^239+sin^251+sin^230 =cos^(180+45) +cos^(270-5) /sin^(270-31) +sin^(180+50) =-cos^45°-sin5°/cos^31°-sin^50° =-1/√2-sin^5°/cos^31°-sin^50°

Answer»

ANSWER:

COS^225+cos^265/SIN^239+sin^251+sin^230

=cos^(180+45) +cos^(270-5) /sin^(270-31) +sin^(180+50)

=-cos^45°-sin5°/cos^31°-sin^50°

=-1/√2-sin^5°/cos^31°-sin^50°

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Evaluate cos^2 25+cos^2 65/sin^2 39+sin^2 51 + sin^2 30​

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Evaluate cos^2 25+cos^2 65/sin^2 39+sin^2 51 + sin^2 30