If 12 tan A=15 then cos A=
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Step-by-step explanation:
12 tanA =15 then cos A =???
given Tan A = 15/12
sin A/cos A=15 / 12
√ 1 - cos² theta/cos theta=15/12
1-cos² theta/co² theta=225/144
144-144cos² theta=225 cos²
144=369cos² theta
cos theta=±√369/√144
cos theta=±6√11/12
cos theta=±√11/2
hope this answer may help you. thank you and have a nice day
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