Mathematics Flashcards
1^2 = __
1
2^2 = __
4
3^2 = __
9
4^2 = __
16
5^2 = __
25
6^2 = __
36
7^2 = __
49
8^2 = __
64
9^2 = __
81
10^2 = __
100
11^2 = __
121
12^2 = __
144
13^2 = __
169
14^2 = __
196
15^2 = __
225
16^2 = __
256
17^2 = __
289
18^2 = __
324
19^2 = __
361
20^2 = __
400
√(2) ≈ __
1.4
√(3) ≈ __
1.7
rules of logarithms:
log(A) 1 = __
0
rules of logarithms:
log(A) A = __
1
rules of logarithms:
log A*B = __
log A + log B
rules of logarithms:
log A/B = __
log A - log B
rules of logarithms:
log A^B = __
B log A
rules of logarithms:
log 1/A = __
- log A
conversion between common and natural logarithms:
log x ≈ ln x / 2.303
estimating logarithms:
e.g. log of 7,426,135,420 –>
log (n * 10^m) ≈ m + 0.n
e.g. log of 7,426,135,420 –> 7.4 x 10^9 –> 9 + 0.74 = 9.74 (actual = 9.87)
common trigonometric ratios:
sin 0° = __
0
common trigonometric ratios:
sin 30° = __
1/2
common trigonometric ratios:
sin 45° = __
√(2)/2
common trigonometric ratios:
sin 60° = __
√(3)/2
common trigonometric ratios:
sin 90° = __
1
common trigonometric ratios:
sin 180° = __
0
common trigonometric ratios:
cos 0° = __
1
common trigonometric ratios:
cos 30° = __
√(3)/2
common trigonometric ratios:
cos 45° = __
√(2)/2
common trigonometric ratios:
cos 60° = __
1/2
common trigonometric ratios:
cos 90° = __
0
common trigonometric ratios:
cos 180° = __
-1
common trigonometric ratios:
tan 0° = __
0
common trigonometric ratios:
tan 30° = __
√(3)/3
common trigonometric ratios:
tan 45° = __
1
common trigonometric ratios:
tan 60° = __
√(3)
common trigonometric ratios:
tan 90° = __
undefined
common trigonometric ratios:
tan 180° = __
0
Celcius to Farenheit:
F = 9/5 C + 32
