if sin theta +cos theta = x .what is the value of sin theta.cos theta
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How was the consept of
ksbxkdljsbslsxkxnjsnxnkx sin theta +cos theta = x .what is the value of sin theta.cos theta
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Step-by-step explanation:
sin¤ + cos¤ = x
on sqaring both side
(sin¤ + cos¤)² = x²
sin²¤ + cos²¤ + 2sin¤.cos¤ = x²
1 + 2sin¤.cos¤ = x²
2sin¤.cos¤ = x²-1
sin¤.cos¤ = x²-1 /2
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