Math, asked by soniachawla2102, 5 months ago

tan30ºtan60º+tan70ºtan20º=

1

2

3

4

Answers

Answered by singhanshuman1020

1

Answer:

Answer is 2.

Step-by-step explanation:

tan30tan60 + tan70tan20

= cot60tan60 + cot20tan20

And, cotA= 1/tanA

hence,

=1 + 1 = 2

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