Use trigonometric identities to find exact trigonometric function values.
d) Explain how to find the exact value of cos(75°). (4 points)
e) Find the exact value of tan(−��12).

Find the equation of the trend line (line of best fit). show your work i'm using the points (34,76) (42,91)

Acompany that manufactures and sells guitars made changes in their product range. from the start they had 20 models. then they reduced the number of models to 15. as a result, the company enjoyed a 10% increase in turnover. - how much did the stock level change? in (%)

What is the measure of angle a and angle c ?