Question

Evaluate:
(i) 2/3(cos430°-sin445°)-3(sin²60°-sec²45°)+1/4cot²30°

(ii) 4(sin430°+cos460°)-2/3(sin²60°-cos²45°)+1/2tan²60°

(iii) sin50°/cos40°+cosec40°/sec50°-4cos50°cosec40°

(iv) tan35°tan40°tan45°tan50°tan55°

(v) cosec(65°+????)-sec(25°-????)-tan(55°-????)+cos(35°+????)

(vi) tan7°tan23°tan60°tan67°tan83°

(vii) 2sin68°/cos22°-2cot15°/5tan75°-3tan45°tan20°tan40°tan50°tan70°/5

(viii) 3cos55°/7sin35°-4(cos70°cosec20°)/7(tan5°tan25°tan45°tan65°tan85°)

(ix) sin18°/cos72°+√3(tan10°tan30°tan40°tan50°tan80°)

(x)cos58°/sin32°+sin22°/cos68°-cos38°cosec52°)/tan18°tan35°tan60°tan72°tan55°)

Answer 1

Answer:

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