Q67: Verify the identity. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8634/.jpg" alt="Verify the
Q68: Find all solutions of the equation. <img
Q69: Find the exact value. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8634/.jpg" alt="Find
Q70: Express as a product. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8634/.jpg" alt="Express
Q71: Find the identity for the function. <img
Q73: Find the exact values of <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8634/.jpg"
Q74: Find the exact value of the expression.
Q75: Verify the identity. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8634/.jpg" alt="Verify the
Q76: Find the identity for the function. <img
Q77: Verify the identity. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8634/.jpg" alt="Verify the