Trig Final

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Convert the point (4,225(degree)) to rectangular coordinates

(-2(square root 2), -2(square root 2)); (-4, 45degree); (4, -135degree)

Use the graph of y=secx to find values between -4pie and 4pie

(-7pie/2), (-5pie/2), (-3pie/2), (-pie/2), (pie/2), (2pie/2), (3pie/2), (5pie/2), (7pie/2)

Convert equation x+y=2 to polar coordinate

R= (2/ cos + sin)

Find exact value of cot pie/12

Square root 3 + 1/ square root 3- 1=2 + square root 3

Find two square roots of 4-(square root)3

(-square root 6) + i(square root 2), (square root 6) - i(square root 2)

If theta is 2pie/3 is a central angle that cuts off an arc length of pie/4cm find the radius

0.375

Simply i^16

1

Use cal to find theta to the nearest tenth a degree if cos= .9730

13.3degree

Solve 3cos2theta+5 sintheta= 0

203.8, 336.2

A point is rotating in a circle with a radius of 1ft find v

20pie

Convert 4pie/3 to degree measure

240 degree

Write 2+2i in trig form

2square root2 cis45

Use cal to find theta to the nearest tenth degree if sec= 1.5450 in QIV

310.3 degree

Simplify {2(cos10+isin10)}^5

32cis50

Height of a tree: 79.0(degree), backs up 40ft, 72.6(degree), find height

336ft

Find 3U-5V

35i + 31j

If B=118, C=37, and c= 2.9 use law of sine to find b

4.3in

Find area of problem above

52km

If a=10, b=12, c=11 use law of cosine to find B

69.5

Simplify (7+3i)-{(2+i)-(3-4i)}

8-2i

Dot product to find angle between U and V

98.6

If triangle ABC is right and has measures of a=20.5, b=31.4, C=90(degree). Find reaming sides

A= 331., B=56.&, c=37.5

Graph one circle of y=1/2sin(pie/2)x

Amp=1/2, period=4

Find two triangles for which A=26, a=4.8, and b=9.4

B=59degree, C=95degree, c=11, B'=121degree, C'= 33degree, c'= 6ft

If cos= 3/5 in QIV find the values of the other 5 trig functions

Sin= -(4/5), tan= -(4/5), cot= -(3/4), csc= -(5/4), sec= (5/3)

Prove the equation sec^2xcsc^2=sec^2x+csc^2x

True from second half

Write an equivalent algebraic expression for tan(sin^-1x) with x only

X/(square root 1-x^2)

For the complex number 3+4i give the absolute value, opposite, and conjugate

a=5, b=-3, c= 3-4i

Find exact value cos15

square root 6 + square root 2/ 4


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