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Vijay Sharma

· started a discussion

· 1 Months ago

ANY SHORTCUT? (Question: 269956.0 )

Guys is there any shortcut to bypass these steps??

Question:

If tan $θ = \frac{\sin x - \cos x}{\sin x + \cos x}$ , then sin x + cos x is -

Options:

A)

$\pm \sqrt{2}$ cos $θ$

B)

$\pm \frac{1}{\sqrt{2}}$ cos $θ$

C)

$\pm \sqrt{2}$ sin $θ$

D)

$\pm \frac{1}{\sqrt{2}}$ sin $θ$

Solution:

Ans: (a)

Anuj kumar

· commented

· 1 Months ago

theta=0 and x=45

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