sin20cos70+sin10sin50
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2
sin20cos70+sin10sin50
=(1/2)[sin90+sin(-50)]+(1/2)(cos40-cos60)
=(1/2)(1-sin50+sin50-1/2)
=(1/2)(1/2)
=1/4
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Answered by
5
Answer:
1/4
Step-by-step explanation:
=(1/2)[sin90+sin(-50)] +(1/2(cos40-cos60)
=(1/2)(1-sin50+sin50-1/2)
=(1/2)(1/2)
=1/4
Hope it will help you
✌️sai
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