if tan50°=p/q find cos40°
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Answered by
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i hope this will usful to u
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mysticd:
to me
that is the confusion
that's why
anyways...thank you
if u post another question , i'll explain step by step
I do have a lot of questions but can you explain it tomorrow?
I will post in the morning for sure
ok, good
night
good night :)
Answered by
9
tan 50 = p/q
sin 50/cos 50 = p/q
cos(90-50)/cos 50 = p/q
cos 40/cos 50 = p/q
cos 40 = p/q x cos 50
= p/q x 0.6428
= 0.6428p/q
sin 50/cos 50 = p/q
cos(90-50)/cos 50 = p/q
cos 40/cos 50 = p/q
cos 40 = p/q x cos 50
= p/q x 0.6428
= 0.6428p/q
on offence if it's wrong
just trying
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