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help with trig identites
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Purple27
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#1
how can you simplify the following?
sinx/cosx + cosx/sinx
tanx/1-sec^2x
1/tanx +cotx
help asap please
sinx/cosx + cosx/sinx
tanx/1-sec^2x
1/tanx +cotx
help asap please
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Tutorsos
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#2
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#2
take L.C.M
( sin^2 x + cos^2 x ) / (sinx cosx)
Now apply trigonometric identities
sin^2(u) + cos^2(u) = 1
2 sin(u) cos(u) = sin(2u)
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Purple27
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#3
(Original post by Tutorsos)
(sinx/cosx) + (cosx/sinx)
take L.C.M
( sin^2 x + cos^2 x ) / (sinx cosx)
Now apply trigonometric identities
sin^2(u) + cos^2(u) = 1
2 sin(u) cos(u) = sin(2u)
(sinx/cosx) + (cosx/sinx)
take L.C.M
( sin^2 x + cos^2 x ) / (sinx cosx)
Now apply trigonometric identities
sin^2(u) + cos^2(u) = 1
2 sin(u) cos(u) = sin(2u)
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Tutorsos
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#4
1) apply second identity for numerator
apply third identity for denominator
2) hint given in the above post
3) apply third identity for denominator
show your work ...
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davros
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#5
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#5
For the others you need to show some working so we can see where you are stuck!!
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