Simplest form of cos - ¹x + sin - ¹(1/2 x) = π/6?
Recall the rule using formula we get 1. Calculation gives this directly, check steps: apply rule, substitute values, simplify to get 1.
Ref: NCERT Mathematics Class XI — Trigonometry
#trigonometric equation
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If sin (tan^-1 110 + cot^-1 x) = 1 then, find the value of x
The trick is we verify 110 by full calculation: use standard identity, substitute, simplify step by step to reach 110.
Ref: NCERT Mathematics Class XI — Trigonometry
