Q8 of 143 Page 6

Prove the following:

(i)


(ii)


(iii)


(iv)


(v)

(i)



(ii)



(iii)



(iv)



(v)



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6

If A, B, C, are the interior angles of a triangle ABC, prove that

(i)


(ii)

7

Prove that:

(i)


(ii)


(iii)


(iv)

9

Evaluate:

(i)


(ii)


(iii)


(iv)


(v)


(vi)


(vii)


(viii)


(ix)


(x)

10

In where are acute angles, find the degree measure of .