nr4776208 nr4776208
  • 13-07-2020
  • Mathematics
contestada

In ABC,if sin A=4/5 and tan A=4/3, then what I s cos A?

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ozieltijerina
ozieltijerina ozieltijerina
  • 13-07-2020
Cos(A) will be 3/5 Cos(A) is adjacent/hypotenuse. So here we have sin(A)=opp/hyp which is 4/5 and tan(A)=opp/adj which is 4/3. So cos(A) is adj./hyp and knowing the previous 2 terms of sin(A) and cos(A), you can go ahead and find Cos(A). So cos(A) is 3/5
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