Question: V7 evaluate sin 20. 3 Qn 3. (a) Given that cot 0 [5] (b) Determine the possible values of 0 in the interval [0,

V7 evaluate sin 20. 3 Qn 3. (a) Given that cot 0

V7 evaluate sin 20. 3 Qn 3. (a) Given that cot 0 [5] (b) Determine the possible values of 0 in the interval [0, 27], satisfying the equation sin 20 cos 0 = 0. [6] (1 cosa)(1+ cos x) cos? x Qn 4. (a) Prove the following identity: tan? x. [4] (b) Determine sec a, given that cos with a being an acute angle. 4 [3] (c) By realizing that 12 can be written as the difference 3 ) [5] determine cos using a 12 suitable sum/ difference formula and without using a calculator.

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