Tell whether the following sequence is arithmetic or not. Explain your reasoning.
7, 16, 27, 40, 55
not arithmetic, the differences are not constant
8 Rad(125) - Rad (5)
39 Rad(5)
(3x3 – 5x + 9) + (6x3 + 8x – 7)
9x3 + 3x + 2
Evaluate:
Sin (2π)
0
Tell whether the following sequence is geometric or not. Explain your reasoning.
1/3, 1/9, 1/27, 1/81, 1/243
geometric, the common ratio is ⅓
-5 Rad(2) - 9 Rad(8)
-23 Rad(2)
(2x2 + 5x + 7) + (3x2 −2x + 5)
5x2 + 3x + 12
Evaluate:
Tan (60)
√3
Using the general rule an=a1+(n-1)d, write a rule for the nth term of the sequence, then find a10.
11, 24, 37, 50,...
an=13n-2, a10=128
-3 Rad(75)+ 4 Rad(3)
-11 Rad(3)
(9x5 – 6x3 + 7x2) – (7x3 – 6x5 + 2x2)
15x5-13x3+5x2
The terminal side of an angle 0 in standard position intersects the unit circle at (-√73/9, 2√2/9).
What is Cos (0)?
-5√249/83
Write the first 6 terms for the following geometric sequence.
a2=15, r=3
5, 15, 45, 135, 405, 1215
-8 Rad(80) + 6 Rad(5)
-26 Rad(5)
3a2 + ab – b2, -a2 + 2ab + 3b2 and 3a2 – 10ab + 4b2
5a2 – 7ab + 6b2
Solve the right triangle:
x=5√2
S12=-72
-10 Rad(125) - 3 Rad(80)
-62 Rad(5)
15x3 – 6x – 23, 3x3 – 5x2 + 8x + 10, -8x3 + 2x2 – 7x and 9x2 – 4x + 15
10x3 + 6x2 – 9x + 2
Find the cotangent:
0.75