tan 20° + tan 40°+✓3tan20° tan40° is equal to ?
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Heya mate!!
Answer:
√3
Step-by-step explanation:
tan 20° + tan 40°+✓3tan20° tan 40°
=tan 60°(1-tan 20°tan 40°)+tan 60°+tan 20° tan 40°[using tan 60=tan 20+tan 40/1- tan 20 tan 40 and tan 60°=√3]
=tan 60°-tan 60° tan 20° tan 40°+tan 60°tan 20°tan 40°
=tan 60°
=√3
hope it's helpful to you ☺️
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