Clickhere👆to get an answer to your question ️ Evaluate: int sin^6x + cos^6xsin^2x·cos^2x dx. Solve Study Textbooks Guides. Join / Login >> Class 12 >> Maths >> Integrals >> Integration by Substitution >> Evaluate: int sin^6x + cos^6xsin^2x·cos. Question . Theorem1.2 Cofunction Theorem. If A and B are the complementary acute angles in a right triangle ABC, then the following relations hold: sinA = cos B sec A = csc B tan A = cotB. sinB = cos A sec B = csc A tan B = cotA. We say that the pairs of functions { sin, cos }, { sec, csc }, and { tan, cot} are cofunctions. Clickhere👆to get an answer to your question ️ If sintheta = a/b , then find costheta Thebottom triangle is a right triangle with hypotenuse length h = cos phi. So if x were your unknown side, doing normal trig on it gives cos theta = x/h = x / (cos phi), or in other words x = (cos theta)(cos phi). All of the sides in that diagram are defined in the same way, relative to the one side that was defined to be of length 1. Weknow that the cosine of an angle is the x -value of a coordinate. At π 4, we can see that the x -value is √2 2. Therefore, cos( π 4) = √2 2. Hope this helps! Answer link. sqrt2/2 As you can see in the table above, cos45^@ or cospi/4 radians is the same thing as sqrt2/2 An alternative way is looking at the unit circle: We know that the Vay Tiền Nhanh Chỉ Cần Cmnd Nợ Xấu.

what is cos x divided by sin x