= cosθ7 Explanation: 7cosθ = 7⋅ secθ1 = secθ7 If cosθ = sinθ, then what is cos2θ? https://math.stackexchange.com/q/124862 Double angle formula : cos(2θ) = cos2θ − sin2 θ =
Clarify mathematic equation
Mathematics is the study of numbers, shapes, and patterns. It is used to describe and explain the physical world around us.
Determine mathematic questions
When it comes to math, practice makes perfect. By doing math tasks on a regular basis, you can improve your math skills and become more confident in your abilities.
Get Help
The answer is yes.
Do math equations
Get arithmetic support online
Improve your math performance
Solve mathematic problem
*Amazing app* Really helpful. 5 stars for such a fantastic app. A very good app, it helps me a lot for math exams, and for checking my answer to look if my is correct or false, for everyone who are in highschool i prefer this app for an upcoming math exams or for people who not good enough for math.
David Martinez
Came across this app by chance and absolutely love it. Either you want to know how to do certain complicated math problems, or you're just too lazy to think, This app is the app for you! My only problem is that it doesn't read characters if they're too small.
Jonathan Mangan
In trigonometry, the law of cosines is also known as the cosine formula or cosine rule, relates the lengths of the sides of a triangle to the cosine of one of its angles. Formula for Cosine The Cosine Formula is, cos
Decide math
Doing math equations is a great way to keep your mind sharp and improve your problem-solving skills.
Download full answer
Math is the study of numbers, space, and structure.
Passing Grade
The company's on-time delivery record is impeccable.
Scan math problem
Completing a task step-by-step can help ensure that it is done correctly and efficiently.
The Law of Cosines says: c2 = a2 + b2 − 2ab cos (C) Put in the values we know: c2 = 82 + 112 − 2 × 8 × 11 × cos (37º) Do some calculations: c2 = 64 + 121 − 176 × 0.798. More calculations: c2
Clear up math tasks
If you're looking for a fun way to teach your kids math, try Decide math. It's a great way to engage them in the subject and help them learn while they're having fun.
Timely Delivery
If you're struggling with arithmetic, there's help available online. You can find websites that offer step-by-step explanations of various concepts, as well as online calculators and other tools to help you practice.
Top Professionals
If you need help with your homework, our expert writers are here to assist you.