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Find the value of a such that the functi...

Find the value of a such that the function f defined by
`f(x)={((sinax)/(sinx) if xne0),(1/a if x=0):}`
is continuous at x=0.

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SHARAM PUBLICATION-MODEL QUESTION PAPER 19-EXERCISE
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  9. Prove that |{:(1+a,1,1),(1,1+b,1),(1,1,1+c):}|=abc(1+1/a+1/b+1/c)or(ab...

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