Math, asked by saniaashif55555, 9 months ago

tan 10degree tan 20degree tan 40degree tan 50degree tan 70degree tan 80degree. find the value

Answers

Answered by dkchakrabarty01

2

Answer:

tan10×tan20×tan40×tan50×tan70×tan80

=tan10×tan80)×(tan20×tan70)×(tan40×tan50)

=(tan10×tan(90-10))........

=tan10×cot10×(tan20×cot20)×(tan40×cot40)

=1×1×1

=1

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