




Card 8 / 8:
imaginary number
the square root of −1 : i = −1 .

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Questions & Answers
the gradient function of a curve is 2x+4 and the curve passes through point (1,4) find the equation of the curve
test for convergence the series 1+x/2+2!/9x3
a man walks up 200 meters along a straight road whose inclination is 30 degree.How high above the starting level is he?
Find that number sum and product of all the divisors of 360
exponential series
Naveen
Prove that: (2cos&+1)(2cos&1)(2cos2&1)=2cos4&+1
e power cos hyperbolic (x+iy)
tan hyperbolic inverse (x+iy)=alpha +i bita
prove that cos(π/6a)*cos(π/3+b)sin(π/6a)*sin(π/3+b)=sin(ab)
why {2kπ} union {kπ}={kπ}?
why is {2kπ} union {kπ}={kπ}? when k belong to integer
Huy
if 9 sin theta + 40 cos theta = 41,prove that:41 cos theta = 41
give me treganamentry question
Solve 2cos x + 3sin x = 0.5
Source:
OpenStax, Algebra and trigonometry. OpenStax CNX. Nov 14, 2016 Download for free at https://legacy.cnx.org/content/col11758/1.6
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