Math, asked by vaishfarooqui, 1 year ago

what is the value of 1+cos x

Answers

Answered by siril

1

1 + cosx = 1 + cos²x/2 - sin²x/2 = cos²x/2 + (1 - sin²x/2) = cos²x/2 + cos²x/2

= 2cos²x/2

vaishfarooqui: thanx for answer to my question

siril: welcome

siril: plz mark as branliest if it was helpful

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