In a A B C- right angled at C- the value of A- B isA- c2-a bB- a-bC- a2-b cD- b2-c a

The correct option is A cot A+cot B=b a+a b=b^2+a^2/ab=c^2/ab ...

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Trigonometric Ratios of Compound Angles

In a A B C, r...

Question

In a $△$ ABC, right angled at C, the value of cot A+ cot B is

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a+b

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In a triangle ABC, right angled at C, the value of cot A + cot B is

In the adjoining figure, if $B C = a, A C = b, A B = c$ and $∠ C A B = 120^{\circ}$ , then the correct relation is

\frac{a^{2} + b^{2} + a b}{b^{2} + c^{2} + b c} + \frac{c^{2} + c a + a^{2}}{b^{2} + c^{2} + b c}

a + b + c = 0

\frac{a^{2}}{b c} + \frac{b^{2}}{c a} + \frac{c^{2}}{a b}

(a b c \neq 0)

a^{3} + b^{3} + c^{3} - 3 a b c

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