Sir/Madam can you please solve question no. 3(ii)

Sir/Madam can you please solve question no. 3(ii) u unit: (O) Only (g) Both land II 2. What is cot 5' cot 20 c COL 700 750 cqua\to'.' 3. (i) If sin 3.4 — cos (A — 2') where 3A and are acute angles, what is the value of A? (a) 220 (c) 240 (d) 250 If sin (x — 2y) cos (4y — x), then the value of col 2y is: (d) undefined . (i) What is the value of cos 10 cos 20 cos 30 cos 900?

sin90-x= cosxso here sinx-2y= sin90-4y-xcompare x-2y = 90-4y+x2y = 90 y = 45 degreeso cot2y = cot90 =0

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