(i) 2 sin 15° cos 15°
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Answered by
0
Answer:
1/2
Step-by-step explanation:
sin(2a) = 2sin(a)cos(a)
2 sin15 cos15
= sin 2(15)
= sin 30°
= 1/2
Answered by
0
Step-by-step explanation:
2 (sin (45-30)cos (45-30) )
2 ( (sin45cos30-cos45sin30) (cos45cos30+sin45sin30)
put the value of sin45,son30 ,cos 45 and cos30
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