Q. 7

# Mark the Correct

Given ABC is a triangle, so A + B + C = 180°

Now applying tan on both sides

tan (A+B +C) = tan (180°)

tan (A + B + C) = 0 ----- (1)

Also given tan A + tan B + tan C = 0 ------ (2)

As per the formula of tan (A+B+C)

Now,

[from equation (1) ]

[from equation (2) ]

By cross multiplying

-tan A tan B tan C = 0

tan A tan B tan C = 0

therefore

Hence cot A cot B cot C = 0

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses
RELATED QUESTIONS :

Prove that:
</
RD Sharma - Mathematics

Prove that:
</
RD Sharma - Mathematics

Prove that:
</
RD Sharma - Mathematics

Prove that:
</
RD Sharma - Mathematics

Prove that:
</
RD Sharma - Mathematics

Prove that:
</
RD Sharma - Mathematics

Prove that:
</
RD Sharma - Mathematics

Prove that:
</
RD Sharma - Mathematics

Mark the Correct RD Sharma - Mathematics

Mark the Correct RD Sharma - Mathematics