The value of sin^2 60°+cos^2 60 is
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Equals to 1
Using identity sin^2 x + cos^2 x = 1
Using identity sin^2 x + cos^2 x = 1
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The value is 1
It’s a key point :
Sin^2A+Cos^2A=1
It’s a key point :
Sin^2A+Cos^2A=1
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