Math, asked by monikashakya878, 6 months ago

sin {2cos-1(3/4)} is equal to

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Answered by lyngdohmagrina

Answer:

sin{2cos^-1(-3/5)} Let cos^-1(-3/5) = A , or cosA = -3/5 =sin 2A =2.sinA.cosA =2. ... A right angled triangle with sides 3,4,5 has angles 37° , 53° & 90° ... What is '2 sin a cos a' equal to?

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sin {2cos-1(3/4)} is equal to ​

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sin {2cos-1(3/4)} is equal to