wifistudy...tanA + secA -1 is equal to - tanA - secA + 1 1 —sinA cosA (C) tanA + secA '1 +...
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wifistudy...tanA + secA -1 is equal to - tanA - secA + 1 1 —sinA cosA (C) tanA + secA '1 + sinA (B) cosA (D) tan A sec A cotA + tanB is equal to - cotB + tanA (A) sin A cos B (C)