Question

Evaluate lim_{x-->0 }(sin 2x sin 9x)/(x^2)

Without using L'Hospital's rule.

Step 1

The given function is lim_{x-->0} (sin 2x sin 9x)/(x^2)

Use the expansion for sin *x* to simplify (sin 2x sin 9x)/(x^2)

Step 2

Apply the limit as *x* tends t...

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