Another question...

If

then the value of sin x is...

the correct ans is

But why I calculate and found instead?

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- Feb 4th 2014, 07:04 AMDeciAnother question... the value of sin x
Another question...

If

then the value of sin x is...

the correct ans is

But why I calculate and found instead? - Feb 4th 2014, 07:38 AMromsekRe: Another question... the value of sin x
Attachment 30120

Neither of those answers is correct. Assuming that by cosec(x) you mean cosecant(x) = 1/sin(x). It's usually abbreviated csc(x).

What I get is

Now look at that last term on the right. It's the square root of a negative number. Over the Real numbers this is not defined. Is this equation meant to be over the Complex numbers? If so the last line is your solution. If not, there is no solution. - Feb 4th 2014, 09:01 AMSorobanRe: Another question... the value of sin x
Hello, Deci!

There must be a typo.

The problem has no real solution.

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