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Byju's Answer
Standard X
Mathematics
Standard Values of Trigonometric Ratios
If sin 2 A +c...
Question
If sin
2
A + cos
2
A =1 then sin
4
A + cos
4
A will also be equal to 1. Or sinA +cosA will also be equal to 1.
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Solution
No, both sin
4
A + cos
4
A and sinA +cosA will not be equal to 1.
in the case of sin
4
A + cos
4
A
it must be less than 1
and in the case of sinA + cos A it must be greater than 1
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