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Evaluate (2 \cis 20^\circ)^3
Evaluate (2 \cis 20^\circ)^3
Evaluate
(
2
cis
20
∘
)
3
.
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More Old MCQ
Orphaned Multiple Choice Questions (MCQ) due to changes of exam system.
A battalion, 20 miles long, advances 20 miles. During this time, a messenger on a horse travels from the rear of the battalion to the front and immediately turns around, ending up precisely at the rear of the battalion...
The magnetic bearing of a line was recorded as S 80° 15' W in 2000 at Mactan Island which had a declination of 16° E in that year. Compute the present magnetic bearing of the same line in 2006 if the declination in 2006 is 4° 30' E.
An airline company known for its promo fare receives on an average 9.7 complaints per day. Using Poisson probability distribution formula, find the probability that on a certain day this airline company will receive exactly 8 complaints.
Two men starting at the same point walk in opposite direction for 4 meters turn left and walk another 3 meters. What is the distance between them?
At what value of x will the slope of the curve x^3 - 9x - y = 0 be 18?
Indirect Mail Inc. had been mailing out coupons for a clearance sale at a constant rate for 4 days, when they counted the coupons, they still had mail out and discovered they had 120,000 left. After 7 total days of work they had 75,000 left. At what rate
Two forces of 20 units and 30 units act at right angles. What is the magnitude of the resultant force?
If
θ
is an acute angle of a right triangle where
sin
θ
=
x
/
2
, compute the value of
sin
2
θ
in terms of
x
.
FtHV51n-1 Find the amount of salt in the tank at any time, t.
The vena contracta of a sharp-edged hydraulic orifice usually occurs:
A businessman wishes to earn 7% on his capital after payment of taxes. If the income from an available investment will be taxed at an average rate of 42%, what minimum rate of return, before payment of taxes, must the investment offer to be justified?
Given a small tube of diameter
d
placed straight up into a liquid with unit weight
γ
, surface tension
σ
, and contact angle
θ
with the walls of the tube, find the capillary rise
h
of the liquid in the tube.
Solve for x from the given equation: 2^x · 2^(x + 1) = 128.
Find the length of the latus rectum of the following ellipse: 25x^2 + 9y^2 - 300x - 144y + 1251 = 0.
A pole cast a shadow 15 m long when the angle of elevation of the sun is 61°. If the pole has lean 15° from the vertical directly towards the sun, what is the length of the pole?
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