6 3.3. What would happen if the angle measured 61 was 42 ?
Explain your answer by calculating any one of the three trigonometric
ratios discussed above.​

Which sum or difference identity would you use to verify that cos (180° - ∅) = -cos ∅? a. sin (α -β) = sin α cos β – cos α sin β b. cos (α -β) = cos α cos β – sin α sin β c. cos (α -β) = cos α cos β + sin α sin β d. sin (α + β) = sin α cos β + cos α sin β

The sum of the reciprocal of a positive number and the reciprocal of 2 more than the number is 3/4 equation: the number is

Anna is constructing a line segment that is congruent to another segment ab. for the construction, which tool should be used to mesure segment ab