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cotxsinx=cosx
1 answer
cotx=cosx/sinx
Therefore, (cosx/sinx)sinx=cosx
cosx=cosx
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cotxsinx - cosx + cosx
Does this equal cos x ? cos/sin * sin = cosx
3 answers
Simplify #3:
[cosx-sin(90-x)sinx]/[cosx-cos(180-x)tanx] = [cosx-(sin90cosx-cos90sinx)sinx]/[cosx-(cos180cosx+sinx180sinx)tanx] =
1 answer
hey, i would really appreciate some help solving for x when:
sin2x=cosx Use the identity sin 2A = 2sinAcosA so: sin 2x = cos x
0 answers
I have a question relating to limits that I solved
lim(x-->0) (1-cosx)/2x^2 I multiplied the numerator and denominator by
1 answer
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