Show that cotA-B-cotAcotB-1-cotA-cotBA

To prove: cot(A+B)=cotAcotB 1/cotA+cotBAProof:R.H.S=cotAcotB 1/cotA+cotBA =cosA/sinAcosB/sinB 1/cosA/sinA+cosB/sinB =cosAcosB sinAsinB/sin ...

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Functions

Show that cot...

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Show that $\cot (A + B) = \frac{cotAcotB - 1}{cotA + cotBA}$

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Name the property where $a, b and c$

$a + b = b + a : ()$

ω

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\frac{1}{a + 1} + \frac{1}{b + 1} + \frac{1}{c + 1}

f (x) = {\begin{matrix} x^{2}, i f x \leq x_{0} a x + b, i f x > x_{0} \end{matrix}

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The following table shows the ages of five people, illustrates this data using a Bar graph, and tell who is the youngest of all?

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The following table shows the ages of five people, illustrates this data using a Bar graph, and tell by how many years is A older than D?

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