solve d^2y/dx^2+y=tanx show working plz

solve d^2y/dx^2+y=tanxshow working plz i don't no it at all
1. 1 answer
2. asked by dams
3. 459 views
For x≠0, the slope of the tangent to y=xcosx equals zero whenever:(a) tanx=-x (b) tanx=1/x (c) sinx=x (d) cosx=x Please help.
1. 0 answers
2. asked by Jake
3. 562 views
For x≠0, the slope of the tangent to y=xcosx equals zero whenever:(a) tanx=-x (b) tanx=1/x (c) sinx=x (d) cosx=x Please help.
1. 1 answer
2. asked by Jake
3. 4,591 views
For this question, they want me to use fundamental trig identities to simplify the expression. The problem is as follows;
1. 5 answers
2. asked by CodyJinks
3. 783 views
Given that a^2+b^2=2 and that (a/b)= tan(45degee+x), find a and b in terms of sinx and cosx.I don't know what i'm supposed to
1. 1 answer
2. asked by Marrion
3. 700 views
Given that a^2+b^2=2 and that (a/b)= tan(45degee+x), find a and b in terms of sinx and cosx.I don't know what i'm supposed to
1. 0 answers
2. asked by Marrion
3. 700 views
2tan^2x-tanx-1=00<x<2pi •MATH - Steve, Thursday, July 18, 2013 at 11:48am (2tanx+1)(tanx-1) = 0 tanx = -1/2 or 1 ... Recall in
1. 5 answers
2. asked by ROBIN
3. 608 views
Show that tanx = sinx / cosxcan be written as tan(x+y) = (tanx + tany) / (1 - tanxtany)
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2. asked by -
3. 648 views
Show that tanx= (sinx/ cosx)can be written as: tan(x-y) = (tanx - tany) / (1+ tanxtany)
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2. asked by -
3. 738 views
Perform the addition or subtraction.tanx - sec^2x/tanx tan^2(x)/tan(x) - sec^2x/tanx = tan^2x sec^2x / tanx then I use the
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2. asked by Hannah
3. 790 views