5 public questions tagged with this topic.
Simply put, after simplifying, sin-¹x is left. The method is simple: formula → substitution → calculation → answer.
Ref: NCERT Mathematics Class XI — Sets, Relations and Functions
Understanding this is easy: 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
We know that we verify [ - 1 2 ,1 2 ] by full calculation: use standard identity, substitute, simplify step by step to reach [ - 1 2 ,1 2 ].
Ref: NCERT Mathematics Class XI — Sets, Relations and Functions
Applying the basic concept, using formula we get 0. Calculation gives this directly, check steps: apply rule, substitute values, simplify to get 0.
Ref: NCERT Mathematics Class XI — Trigonometry
In easy words, solving fully: apply relevant formula, put numbers, compute. Result comes as Does not exist. Easy verification shows it satisfies condition.
Ref: NCERT Mathematics Class XI — Trigonometry
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