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The trigonometric equation `sin^(-1)x=2sin^(-1)a`has a solution forall real values (b) `|a| |
Answer» `-pi/22<=sin^(-1)x<=pi/2` `-pi/2<=2sina<=pi/2` `-pi/4<=sina<=pi/4` `-1/sqrt2<=a<=1/sqrt2` `|a|<=1/sqrt2`. |
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