Use the given information to find the exact value of the expression.

sin α =21/29 , α lies in quadrant iv, and cos β =-4/11 , β lies in quadrant iii find cos(α+β).

Why did the ice arena get so hot after the big game (this is math related google it to find the paper

Yuto and hila attempted to solve the same inequality. their work is shown below. which statement is true about the work shown above? yuto is correct because he isolated the variable correctly and reversed the inequality symbol. yuto is incorrect because he should not have reversed the inequality symbol. hila is correct because she isolated the variable correctly and reversed the inequality symbol. hila is incorrect because she should not have reversed the inequality symbol.

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0