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OpenStudy (anonymous):
will give medal and fan to best answer!! How are the sin 20° and the cos 70° related? Explain using complete sentences.
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OpenStudy (anonymous):
sin(A−B) = sinAcosB−cosAsinB we can write sin 20= sin (90-70) now using above formula u can see the relation.
OpenStudy (anonymous):
thankyou
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