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Chakravarthi g s Asked a Question
June 2, 2020 8:00 ampts 30 pts
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  • Ruby negi thankyou
    this is the property of trigonometric functions....
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  • P Choursiya Best Answer
    sin(π-2X) = sin2x, this is property. cos (π/4) = sin(π/4) = 1/√2. so apply sin(a+b) property here we put X= π/4 -t so angle in last term can make @=π/4+π/4-t. so sin@ changes in...
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