find the value of sin 25° × cos 65°+ cos 25° × sin 65°
Answers
Answered by
1
Answer:
The answer is 1.
Step-by-step explanation:
We can say,
sin 25*cos 65+ cos 65*sin 25
=sin(25+65) {it is the formula of sin(a+b)}
=sin 90
=1
Answered by
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]
hopes it is help full
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