find the value of sin 2A cos 2A and tan 2A when sin a equal to 5 by 13 and Cos A equal to 7 by 25
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Step-by-step explanation:
Sin a =5/13
Cos a =7 /25
Sun 2a = 2sinacosa
= 2x 5/13 x 7/25 = 14/65
Cos 2a = 2cos^2 a - 1
= 2x (49/625) - 1
= 98/625 - 1
= - 527/625
Tan 2a = sin 2a / cos 2a
= 14/65 x - 625/ 527
= - 0.255
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