Welcome to the course
About the course
Examinations
1. Numerical calculations
1.1 Different types of numbers
1.2 Fractions
1.3 Powers
2. Algebra
2.1 Algebraic expressions
2.2 Linear expressions
2.3 Quadratic expressions
3. Roots and logarithms
3.1 Roots
3.2 Equations with roots
3.3 Logarithms
3.4 Logarithmic equations
4. Trigonometry
4.1 Angles and circles
4.2 Functions
4.3 Relations
4.4 Equations
5. Written mathematics
5.1 Writing formulas
5.2 Mathematical text
Search
Processing Math: Done
To print higher-resolution math symbols, click the
Hi-Res Fonts for Printing
button on the jsMath control panel.
jsMath
Warning:
jsMath
requires JavaScript to process the mathematics on this page.
If your browser supports JavaScript, be sure it is enabled.
Answer 4.2:1
From Förberedande kurs i matematik 1
Jump to:
navigation
,
search
a)
x
=
1
3
tan
2
7
6
.
62
b)
x
=
2
5
cos
3
2
2
1
.
2
c)
x
=
14
tan
4
0
1
6
.
7
d)
x
=
16
cos
2
0
1
7
.
0
e)
x
=
11
sin
3
5
1
9
.
2
f)
x
=
19
tan
5
0
1
5
.
9
tan27
6.62