Question

If cos A = 4/5 then cos² A + sin² A =​

Answer 1

Step-by-step explanation:

cos =4/5 means b=4 h= 5

as we know the formula cos square A + sin square equals to 1 and if you want to do by Pythagoras Theorem you can find the B and put the value of the then you will get yourself if you are unable post again I will solve

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