Math, asked by jerrygomez122, 4 months ago

if tan=3/4,then the value of cos2x is?

Answers

Answered by sandy1816

3

Answer:

cos2x=1-tan²x/1+tan²x

cos2x=1-(9/16)/1+(9/16)

cos2x=16-9/16+9

cos2x=7/25

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