For Exercises 64-68, use the fundamental trigonometric identities as needed. Given that sin x ° ≈ 0.3746 , approximate the given function values. Round to 4 decimal places. a. cos 90 − x ° b. cos x ° c. tan x ° d. sin 90 − x ° e. cot 90 − x ° f. csc x °
For Exercises 64-68, use the fundamental trigonometric identities as needed. Given that sin x ° ≈ 0.3746 , approximate the given function values. Round to 4 decimal places. a. cos 90 − x ° b. cos x ° c. tan x ° d. sin 90 − x ° e. cot 90 − x ° f. csc x °
Solution Summary: The author calculates the value of mathrmcos(90-x)° rounded to 4 decimal places by using the fundamental trigonometric identities.
For Exercises 64-68, use the fundamental trigonometric identities as needed.
Given that
sin
x
°
≈
0.3746
, approximate the given function values. Round to
4
decimal places.
a.
cos
90
−
x
°
b.
cos
x
°
c.
tan
x
°
d.
sin
90
−
x
°
e.
cot
90
−
x
°
f.
csc
x
°
Equations that give the relation between different trigonometric functions and are true for any value of the variable for the domain. There are six trigonometric functions: sine, cosine, tangent, cotangent, secant, and cosecant.
Inverse laplace transform
Lect: Huda I
H.w
1- F(S)=
A- Find - F(s) of the following
S
(s+1)5
1
2- F(s)
s² (s-a)
5+5
3- F(s)=
s2+4s+3
1
4- F(s)=
(s+2)2(s-2)
3s2-7s+5
5- F(s)=
(s-1)(s2-5s+6)
Inverse laplace transform
Lect :Huda I
H.w
A- Find L-1 F(s) of the following
1- F(S)=
2- F(s)-
S
(+1)5
s² (s-a)
5+5
s2+4s+3
3- F(s)-
1
4- F(s)-
(s+2)2(s-2)
3s2-7s+5
5- F(s)-
(s-1)(s2-55+6)
B-Solve the D.E of the following:
1- y'+3y+2fy dt = f(t) for y(0)-1 if f(t) is the function
whose graph is shown below
2
1 2
2-y+4y-u(t)
for y(0)=y'(0)=0
3- y"+4y'+13y= e−2t sin3t
for y(0)-1 and y'(0)=-2
17
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Fundamental Trigonometric Identities: Reciprocal, Quotient, and Pythagorean Identities; Author: Mathispower4u;https://www.youtube.com/watch?v=OmJ5fxyXrfg;License: Standard YouTube License, CC-BY