(i) (2 tan 30°)/(1 + tan² 30°) = (A) sin 60° (B) cos 60° (C) tan 60° (D) sin 30° (ii) (1 – tan² 45°)/(1 + tan² 45°) = (A) tan 90° (B) 1 (C) sin 45° (D) 0 (iii) sin 2A ...
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Will CBSE board examination mathematics standard paper be very difficult and lengthy? Please let me know how much difficult will it be.
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