sina=3/5 then find the value of tanA/2
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Step-by-step explanation:
Sina=3/5 given=>tana=3/4
Tana =2tana/2/1-tansqa/2
3/4=2x/1-x^2
3x^2+8x-3=0
x=tana/2=-3or1/3 but tana/2 is positive since a lie in first quadrant
Therefore a/2 also lie in first quad
=>tana/2=1/3
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