Math, asked by nanditalakshmi9, 10 months ago

evaluate tan 19, tan 37, tan 71 tan 53

Answers

Answered by servjeetkaur5

4

Step-by-step explanation:

tan19 tan71 tan37tan53

tan(90-71) tan(90-53) tan71 tan53

cot71 tan71 cot53 tan53

=1 (as cot=1/tan)

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