Hello, etheen!
I'll do a few of them . . .
Replace withSolve over Real numbers:
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Replace with
We have: .
Square both sides: .
. .
We have: .
We have: .
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Solve over Real numbers:
a)5sin^2t+cos^2t-2=0 b)sec^2t+tantt=7 c)root of sint=2sint-1 d)tant-sintcost=0
Solve over [0, 2pi[ :
e)sin^2x-cos^2x=0 f)2tan^2x+3tanx-5=0 g)2sin^2x-sinx-1=0 h)6cos^2x+5cosx=0
solve:
2(cos(3x-pi)+2=1 "x" element of reals
if "x" element [0 degrees,180degrees] solve 4sin2(x-5)=1
Find the exact value:
cosx=-1/3 pi/2<0<pi
evaluate
sin2x tan2x