document.write( "Question 1030473: I have to find the exact value for this trigonometric expression. Help? :(
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document.write( "cos (sin^-1 (1/4)) = ?? \n" );
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Algebra.Com's Answer #645338 by fractalier(6550)![]() ![]() You can put this solution on YOUR website! Draw a triangle such that the sine of an angle is 1/4. Then the adjacent side is sqrt(16-1) = sqrt(15). \n" ); document.write( "The cosine of that same angle is sqrt(15)/4. \n" ); document.write( " |