Math, asked by ap4435341, 10 months ago

plzz prove
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Answered by Anonymous
0

Answer:

Sin 25° cos 65° + cos 25° sin 65°

= sin 25° cos (90-25) + cos 25° sin(90-25)

= sin 25° sin 25° + cos 25° cos 25°

= sin²25° + cos²25°= 1 [sin²A+cos²A = 1]

Answered by SainaPaswan
2

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Sin 25° cos 65° + cos 25° sin 65°

= Sin 25° sin25° + cos25° cos 25°

= sin² 25° + cos²25° = 1[sin² A+ cos²A=1]

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