If tanA=4/3, find the value of sina.
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Answered by
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Answer:
4/5
Step-by-step explanation:
Since tan A= perpendicular/base
=> perpendicular= 4x
=> base = 3x
By Pythagoras theorem,
(4x)² + (3x)² = hypotenuse ²
=> 16x² + 9x² = hypotenuse ²
=> 25x² = hypotenuse ²
=>hypotenuse = √(25x²)
=>hypotenuse = 5x
since sin A = Perpendicular/Hypotenuse
=> sin A = 4x / 5x
=> sin A = 4/5
Hope, it helps you and you got the method and answer.
Answered by
0
Step-by-step explanation:
if tanA =4|3 then sinA will be
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