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Qn #1555
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If tan A - tan B = x and cot B - cot A = y, then cot (A - B) is equal to
A.
$\frac{1}{x}+\frac{1}{y}$
B.
$\frac{1}{x}-\frac{1}{y}$
C.
$-\frac{1}{x}+\frac{1}{y}$
D.
$-\frac{1}{x}-\frac{1}{y}$
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❓ Question: If tan A - tan B = x and cot B - cot A = y, then c... | TANCET Group Studies | Tancet Group Studies