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Misha Larkins [42]
4 years ago
7

Find the exact value of sin ( 2

Mathematics
1 answer:
Varvara68 [4.7K]4 years ago
4 0
In a right angled triangle 'efg' cos a = 3/5
From Pythagoras theorem the third side will be 4
cos a =3/5
sin a =4/5
sin 2a =2 x 4/5
sin 2a= 8/5
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