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Geometry Level 1

If sin ⁡ − 1 ( 1 2 ) = θ ∘ \sin^{-1}\left(\frac{1}{2}\right) = \theta^\circ , where − 90 ≤ θ ≤ 90 -90 \leq \theta \leq 90 , what is the value of θ \theta ?


The answer is 30.

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Arron Kau by Arron Kau

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2 solutions

Vishnudatt Gupta
May 2, 2014

sine angle=1/2

so angle =30 answer

0 Helpful 0 Interesting 0 Brilliant 0 Confused
Lu'lu Aisy
Dec 24, 2013

It means sinθ=1/2 sinθ = 1/2, if θ=30

0 Helpful 0 Interesting 0 Brilliant 0 Confused

but, how i did'nt get u......?

sri vaishnavi - 7 years, 4 months ago

30

Khalil Belallam - 7 years, 2 months ago

I expected 100% solvers

Md Zuhair - 3 years, 4 months ago

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