Grade 11Trigonometry
Value of Cos square A+ cos square B +cosAcosB is equal to? If A+B=120°
Value of Cos square A+ cos square B +cosAcosB is equal to?
If A+B=120°
1 Answer
Saurabh Koranglekar
Dear student
Instead of subjective approach lets try to use objective approach
Assume A= B = 60
Therefore eqn = 3(1/2)*(1/2)
Ie ans 3/4
Regards
Instead of subjective approach lets try to use objective approach
Assume A= B = 60
Therefore eqn = 3(1/2)*(1/2)
Ie ans 3/4
Regards
Other Related Questions on trigonometry
In ABC, if cot A+cot B+cot C = cosecA cosecB cosecC, then prove that ABC is right angle triangle.
In ABC, if cot A+cot B+cot C = cosecA cosecB cosecC, then prove that ABC is right angle triangle.
trigonometry
Last Activity: 3 Years ago
- Find the general solution of equation tan3∂=cot2∂
For all angles between -720 and +720
- Find the general solution of equation tan3∂=cot2∂
For all angles between -720 and +720
trigonometry
Last Activity: 4 Years ago
Derive a formula for the area of the triangle, given b, A, B, and C. That is, derive the formula: (b^2sinAsinC)/(2sinB)
Derive a formula for the area of the triangle, given b, A, B, and C. That is, derive the formula: (b^2sinAsinC)/(2sinB)
trigonometry
Last Activity: 4 Years ago
WHAT IS THE LIMIT WHEN X TOWARDS TO 0 OF sin6x/5x ? lim𝑥→0 𝑠𝑖𝑛6𝑥/5𝑥
WHAT IS THE LIMIT WHEN X TOWARDS TO 0 OF sin6x/5x ? lim𝑥→0 𝑠𝑖𝑛6𝑥/5𝑥
trigonometry
Last Activity: 4 Years ago