If √3tanA-1=0 find value of sin square A - cos squareA
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Answer:
Step-by-step explanation:
Root3 tanA =1
TanA=1/root 3
TanA=tan30°
On comparing,
A=30°
Now ,
Sin square A -cos square A
=sin square 30° - cos square 30°
=(1/2)²- (root3/2)²
=1/4-3/4
=-1/2 ANSWER.
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