Q. 203.9( 7 Votes )
Prove that tan 6<
Answer :
To Prove: tan 6° tan 42° tan 66° tan 78° = 1
Taking LHS,
= tan 6° tan 42° tan 66° tan 78°
Multiply and divide by tan 54° tan 18°
…(i)
We know that,
tan x tan(60° – x) tan (60° + x) = tan 3x
So, eq. (i) becomes
= 1
= RHS
∴ LHS = RHS
Hence Proved
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
view all courses
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
RELATED QUESTIONS :
Prove that:
</
Prove that:
</
Prove that:
</
Prove that:
</
Prove that:
</
Prove that:
</
Prove that:
</
Prove that:
</
Mark the Correct
RD Sharma - MathematicsMark the Correct
RD Sharma - Mathematics