JEE Mains · Maths · STD 11 - 3. trignometrical ratios,functions and identities
The number of elements in the set \(\left\{x \in\left[0,180^{\circ}\right]: \tan \left(x+100^{\circ}\right)=\tan \left(x+50^{\circ}\right) \tan x \tan \left(x-50^{\circ}\right)\right\}\) is ___ .
- A 2
- B 3
- C 4
- D 5
Answer & Solution
Correct Answer
(C) 4
Step-by-step Solution
Detailed explanation
\(\frac{\tan \left( x +100^{\circ}\right)}{\tan x }=\tan \left( x +50^{\circ}\right) \tan \left( x -50^{\circ}\right)\)…
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