Answer:
30
Step-by-step explanation:
15x2=30
10x3=30
Answer:
well sorry I dont understand you
For cos(2x) * (2cos(x) + 1) = 0, use the double angle identity for cos(2x), which is cos^2 x - sin^2 x = cos^2 x - (1-cos^2) = 2cos^2 x - 1.
So we have (2cos^2 x - 1)(2cos x + 1) = 0. So 2cos^2 x -1 = 0 or x = 0 and 2pi.
For 2sec^2 x + tan^2 x - 3 = 0, use the identity sec^2 x = tan^2 x + 1, so we have
2(tan^2 x + 1) + tan^2 x - 3 = 0 or
<span>2tan^2 x + tan^2 x - 1 = 0 or
</span>3 tan^2 x = 1.
So x = pi/2, pi/2 + pi = 3pi/2.
So hundreth is the 2nd number after the decimal point
that is the 6
so to round you take the numer before it so
69
if number is <u>></u>5 round up
if number is <5 round down
9 is >5 so round up
7
35.77 ppounds
Current. This is because the current is dependent on the light intensity which is an independent variable. The current is also affected by the light intensity.
