if 2 (cos+sec)=5,what is value of cos square+sec square. Created by anjani9. Math

if 2 (cos+sec)=5,what is value of cos square+sec square...

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July 2022 1 21 Report

if 2 (cos+sec)=5,what is value of cos square+sec square

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meyyappan Cos + sec = 5/2

(cos + sec )^2 = 25/4

cos sq + sec sq + 2cos sec = 25/4

cos sq + sec sq + 2 cos ( 1/ cos) = 25/4

cos sq + sec sq + 2 = 25/4

cos sq + sec sq = 25/4 - 2

= (25-8)/4

= 18/4 = 9/2

the answer is 9/2 or 4.5

anjani9 it was 85 percent correct

meyyappan how its 15 percent wrong

meyyappan then whats the answer

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