Mathematics · Implicit Differentiation
If (a + √2 b cos x)(a - √2 b cos y) = a2 - b2 where a > b > 0, then at (π4, π4), dydx =
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1a + 2ba - 2b
- 2a - 2ba + 2b
- 3a - ba + b✓
- 4a + ba - b
Correct answer
a - ba + b
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