Grade 11Trigonometry
How to find the value of sin4x,cos4x,cot4x,or more 3x . Please its an urgent?
How to find the value of sin4x,cos4x,cot4x,or more 3x . Please its an urgent?
3 Answers
Vijay Mukati
Dear Student, If you know the value of sinx or cosx or tanx etc. Then you can easly find the values of sin4x, cos4x, cot4x by using the basic trignometric formulas.
Example:- sin 4x = sin2(2x) = 2sin2xcos2x=4sinxcosxcos2x. Also you can use cos2x = 2cos2x-1 or 1-2sin2x formula. Thanks.
Example:- sin 4x = sin2(2x) = 2sin2xcos2x=4sinxcosxcos2x. Also you can use cos2x = 2cos2x-1 or 1-2sin2x formula. Thanks.
VINEETH N
What will be the final result of sin4x? Is it 2cos2x? How?
Vijay Mukati
sin 4x = sin2(2x) = 2sin2xcos2x=4sinxcosxcos2x = 4sinxcos(2cos2x-1) =4sinxcos(1-2sin2x).
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