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  • If sin A = then the value of cot A = 1 by 2 is (a)sqroot3 (b) 1 by sqroot 3(c) (d) 1

If sin A =1/2 then the value of cot A is

a) \sqrt{3}                 (b) \frac{1}{\sqrt{3}}                (c) \frac{\sqrt{3}}{2}                 (d) 1

Answers (1)

\\sinA=\frac{1}{2}\text{ for angle }30^0\\cosA=\frac{\sqrt{3}}{2}\\cotA=\frac{cosA}{sinA}=\frac{\frac{\sqrt{3}}{2}}{\frac{1}{2}}=\sqrt{3}
Hence option (a) is correct.

 

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infoexpert27

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