Math, asked by sbachooalle, 1 year ago

Tan15*tan20*tan70*tan75

Answers

Answered by swarajsanket
22
arranging them gives:
tan15*tan75*tan20*tan70
=tan15*tan(90-15)*tan20*tan(90-20)
=tan15*cos15*tan20*cos20
=tan15*1/tan15*tan20*1/tan20
=1*1
=1
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