Everything Maths Grade 10

c)tan 60 ◦sin 60 ◦tan 60 ◦

p

3

2

p

3

1

1

2

1

1

1

p

2

d)sin 30 ◦sin 30 ◦sin 30 ◦

1

2

1

2

p

3

1

8

1

4

p

3

4

p

2

e)sin 45 ◦tan 45 ◦tan 60 ◦

3

2

p

2

p

3

8

3

4

p

3

p

2

1

4

f)cos 60 ◦cos 45 ◦tan 60 ◦

p

3

2

p

2

p

3

4

3

4

p

2

1

2

1

4

p

3

g)tan 45 ◦sin 60 ◦tan 45 ◦

p

3

2

3

8

1

3

p

3

2

p

2

1

4

p

3

h)cos 30 ◦cos 60 ◦sin 60 ◦

3

8

3

2

p

2

p

3

4

p

2

1

2

p

3

1

4

p

3

6.Without using a calculator, determine the value of:

sin 60 ° cos 30 °cos 60 ° sin 30 °+tan 45 °

7.Solve forsinin the following triangle, in surd form:

9

6

p

3

3

p

3



8.Solve fortanin the following triangle, in surd form:

7

p^14

3

p^7

3



140 5.9. Chapter summary