tan1 degree + tan2 degree + tan3 degree........ tan89 degree is
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Hey there !!
Find the value :-
tan 1° tan 2° tan 3° ...... tan 89° .
Solution :-
= tan 1° tan 2° tan 3° ...... tan 89° .
= tan 1° tan 2° ... tan 44° tan 45° tan 46° ... tan 88° tan 89° .
= ( tan 1° • tan 89° )( tan 2° • tan 88° ) .... ( tan 44° • tan 46° ) • tan 45° .
= { tan 1° • tan( 90° - 1° )} • { tan 2° • tan( 90° - 2° )} .... tan 44° • tan( 90° - 44° )} • tan 45° .
= ( tan 1° • cot 1° )( tan 2° • cot 2° )....( tan 44° • cot 44° ) • 1 .
[ °•° tan( 90° - ∅ ) = cot ∅ and tan 45° = 1 ]
= 1 × 1 × .... × 1 × 1 .
✔✔ Hence, it is solved ✅✅.
THANKS
#BeBrainly.
Srividyashivakumar:
Hi sachin
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