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Mathematics
Kenna Garner
4 November, 14:00
Sin97cos43+cos97 sin43
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1
)
Addisyn
4 November, 16:21
0
sin 40
Step-by-step explanation:
We know,
sinA cosB + cosA sinB = sin (A+B) [Formula]
Here,
A=97; B = 43
Now,
sin97cos43+cos97 sin43
= sin (97+43)
=sin 140
=sin (180-40) [sin (180-A) = sinA; here A = 40]
=sin 40
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