Find the missing sides and angles of a triangle ABC if angle equals 30° angle C equals 90° and CB equals 11

Find the value of 1715⋅211.though these numbers aren't quite as nice as the ones from the example or the previous part, the procedure is the same, so this is really no more difficult. give the numerator followed by the denominator, separated by a comma.

What signals you that factoring by grouping is the best method to use when factoring a problem?

The trigonometric ratios sine and secant are reciprocals of each other