sin(60°) cos(30°) + cos(60°) sin(30°) equals:
Acos(30°) = √3/2
Bsin(90°) = 1
CCannot calculate
Dsin(30°) = 1/2
Answer & Solution
Correct answer: B. sin(90°) = 1
By sin(A+B) formula: this is sin(60° + 30°) = sin(90°) = 1.
Related questions
Simplifying an equation, a student reaches a statement that can never be true. The equatioAfter squaring both sides of a radical equation, a student finds a root that fails the oriSolving such an equation, a student clears every denominator at once by multiplying througAn equation contains at least one rational expression, with a variable in a denominator. TTo clear a complex number from a denominator, a student multiplies by the term found by flComplex numbers cannot sit on an ordinary number line, so they are plotted on a plane whosRather than drawing a number line, a student writes the solution set with brackets and parA statement joins two inequalities together in one line, such as 2 < x < 7. That statement