Question : The value of $(\tan35° \tan45° \tan55°)$ is:
Option 1: $\frac{1}{2}$
Option 2: $2$
Option 3: $0$
Option 4: $1$
Correct Answer: $1$
Solution : Given: $\tan35° \tan 45° \tan55°$ = $\tan 35° \tan 45° \tan (90-35)°$ = $\tan 35° \tan 45° \cot 35°$ = $\tan 35° \tan 45° \frac{1}{\tan 35°}$ = $\tan 45°$ = $1$ Hence, the correct answer is $1$
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