Question

Consider ∆ ACB, right-angled at C, in which AB = 29

units, BC = 21 units and ∠ ABC = θ Determine the values of

(i) cos2 θ + sin2 θ, (ii) cos2 θ – sin2 θ.​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

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