the value of 5cos23×sin67+5sin23×cos67
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5cos23×sin67+5sin23×cos67
=> 5cos23× sin (90-23) +5sin23×cos(90-23)
= 5cos23×cos23+5sin23×sin23
= 5cos²23+5sin²23
= 5(cos²23+sin²23)
= 5
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Answer:
AkankshaacharyaExpert
sin 23° cos 67° + cos 23° sin67°
=sin23° cos(90°-23°) + cos 23° sin(90°-23°)
=sin23° sin23°+cos23° cos23°
=sin^2 23°+cos^2 23°
=1
Step-by-step explanation:
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