Question 68

If tan -7π/4 = x, then the value of x is

Expression : tan -7π/4

$$\because tan(-x) = -tan x$$

= $$-tan(\frac{7\pi}{4})$$

= $$-[tan (2\pi - \frac{\pi}{4})]$$

= $$-[-tan(\frac{\pi}{4})] = 1$$

=> Ans - (D)

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