TS EAMCET · Maths · Differentiation
If \(z=\sec (y-a x)+\tan (y+a x)\), \(\frac{\partial^2 z}{\partial x^2}-a^2 \frac{\partial^2 z}{\partial y^2}\) is equal to
- A \(0\)
- B \(-z\)
- C \(z\)
- D \(2 x\)
Answer & Solution
Correct Answer
(A) \(0\)
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