1. Δ XYZ is right angled at Y. If m∠Z = 60°, then what is the value of (1/√2) Sec X?





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  • By: anil on 05 May 2019 01.46 am
    Given : m∠Z = 60° and m∠Y = 90° => In $$ riangle$$ XYZ, => ∠X + ∠Y + ∠Z = 180° => ∠X + 60° + 90° = 180° => ∠X = 180° - 150° = 30° To find : (1/√2) Sec X = $$sec(30^circ) imes frac{1}{sqrt2}$$ = $$frac{2}{sqrt3} imesfrac{1}{sqrt2}=frac{2}{sqrt6}$$ => Ans - (D)
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