If sin x 35 x in quadrant III then sin 2x cos 2x tan 2x

If sin x = -3/5, x in quadrant III, then sin 2x = cos 2x = tan 2x =

Solution

sinx=-3/5

in third quadrant cos xis negative

cos x= adjacent/hypotenuse

   here opposite=3   and hypotenuse=5

adjacent=4

cos x= -4/5

sin 2x=2sinx cos x=2(-3/5)(-4/5)= 24/25

cos 2x=2cos2x-1 = 2(-4/5)2-1= 7/25

tan 2x=sin2x/cos 2x= 24/7

 If sin x = -3/5, x in quadrant III, then sin 2x = cos 2x = tan 2x = Solutionsinx=-3/5 in third quadrant cos xis negative cos x= adjacent/hypotenuse here opposi

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