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Evaluate the following Sin18° cos73° +√3{tan …

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Evaluate the following Sin18° cos73° +√3{tan 10° tan30° tan40° tan50° tan 80°

Posted by Mawnohsynrum Umsninh 5 years, 4 months ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 5 years, 4 months ago

We know that:

(i) sin(90 - A) = cosA.

(ii) cotA = (1/tanA).

(iii) tan(90 - A) = cotA

Now, Coming to the question.

= > 1 + 1

= > 2.

0Thank You

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CBSE > Class 10 > Mathematics