3. (a) In AABC, right-angled at B, AB = 24 cm, BC = 7 cm. Determine:
(1) sin A, cos A (ii) sin C, cos C.
b) If triangle ABC is right-angled at B and AB = 12 cm, BC = 5 cm, fin
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Answer:
Step-by-step explanation:
In triangle ABC,
AB=24cm,BC=7cm
So,AC=root 24^2 +7^2
=root576+49
=root625
=25cm
Thereforei) sinA=7/25
...... cosA=24/25
ii) sinC=24/25
cosC=7/25(ans)
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