Question

if tan=3/4, then cos²-sin²=​

Answer 1

Hope this answers the question

Answer 2

Answer:7/25

Step-by-step explanation:

tan=3/4 than cos=4/5 and sin=3/5....

so,   cos^2-sin^2=[4/5]^2-[3/5]^2                                                                                                

                           =16/25-9/25

                           =7/25                

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