Question
a = x(sin A+ cos A) and d = y (sin A – cos A) then
find (a/x)2 + (d/y)2Solution
a = x(sin A+ cos A) so a/x = sin A+ cos A d = y (sinA-cosA) so d/y =sinA - cosA Now, (a/x)2 + (d/y)2 = (sin A + cos A)2 + (sin A-cos A)2 = 2(sin2 A+ cos2 A) = 2 × 1 = 2
More Trigonometry Questions
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What will come in the place of question mark (?) in the given expression?
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35% of 240 – 6 2 = ? 2 – √256
30% of 600 –
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