- Prove that

i)

ii)

iii)

iv)

v)

vi)

vii)

viii) - Find the values of the following:

i)

ii)

iii)

vi)

(Hint: and ): - Prove that:

i)

ii) - Prove that:

i)

ii)

iii)

iv) - v)
- Show that:
- Show that:
- Show that:

i)

ii)

iii) - If and , where and .

Show that - If and where and . Find

i)

ii)

iii)

iv)

v)

vi)

In which quadrants do the terminal sides of the angles of measures and lie? - Find and , given that

i) and neither the terminal side of the angle of measure nor that of is in the I quadrant. - ii) and and neither the terminal side of the angle of measure nor that of is in the Iv quadrant.
- Prove that
- If are the angles of a triangle , show that
- If , show that
- Express the following in the form or , where terminal sides of the angles of measures and are in the first quadrant:

i)

ii)

iii)

iv)

v) .

vi)

# Applications of basic Identities Exercise 10.2

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