sin. 1 y y ? = = 1 csc y ? = cos. 1 x x ? = = 1 sec x ? = tan Tangent and Cotangent Identities sin cos tan cot cos sin ... Law of Cosines.
and Cosecant - The Quotient Rule
sin. 1 y y ? = = 1 csc y ? = cos. 1 x x ? = = 1 sec x ? = tan Tangent and Cotangent Identities sin cos tan cot cos sin ... Law of Cosines.
Basic Rules for Trigonometric Functions. 1. tan = sin cos. 2. sec = 1 cos. 3. csc = 1 sin. 4. cot = cos sin. 5. sin. 2. + cos2. = 1. 6. tan2. + 1 = sec2.
The six trigonometric functions can be used to find the ratio of the side lengths. The six functions are sine (sin) cosine (cos)
https://www.alamo.edu/contentassets/35e1aad11a064ee2ae161ba2ae3b2559/analytic/math2412-double-angle-power-reducing-half-angle-identities.pdf
2 )sin( ? ? ?. 2 ) cos? + cos? = 2 cos( ? + ?. 2 )cos( c2 = a2 + b2 ? 2abcos?. Law of Tangents a ? b a + b. = tan 1. 2(? ? ?) tan 1.
cos(A + B) = cos A cos B ? sin A sin B. (4) cos(A ? B) = cos A cos B + sin A sin B sin 2? = 2 sin ? cos ?. (11) tan 2? = 2 tan ?. 1 ? tan2 ?.
sin -1 or arcsin is the inverse of the restricted sine function y = sin x
(tan-1 x) = These rules are all generalizations of the above rules using the chain rule. ... (sin(u)) = cos(u) du dx. 7. d dx. (cos(u)) = ?sin(u).