Math, asked by sadiq5629, 9 months ago

2cos^2 A+ cos A-1 = 0​

Answers

Answered by Ayeshah10
2

use the formula

 {sin}^{2} a +  {cos}^{2}  = 1 \\  \\

so u only should try

l

Answered by rekhadwivedi974
1

Answer:

there is a formula

sin²A + cos²A =1

so. applying it you can get the answer as I think you have typed your answer incorrect

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thank my answer too

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