Math, asked by kumaipinki58, 8 months ago

ratio of maximum and minimum value of 2cos²x+cosx+1

Answers

Answered by soyebaftab28

1

Answer:

Here, f(x)=2-cosx+sin2x f′(x)=sinx +2sinxcosx=sinx(1+2cosx) Now, for maximum and minimum value, f′(x)=0

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