tan 45º - tan17 tan(45° -17°) = 1 + tan 45º tan17
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Answer:
khkhkhkhk
Step-by-step explanation:
Answered by
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Answer:
$$\tan 43^o\cdot\tan 45^o
\cdot \tan 47^o$$
=tan43
o
⋅tan(90
o
−43
o
)⋅tan45
o
=tan43
o
×cot43
o
×1
=1×1=1
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