The set of the steps used to prove the sine sum identity are use the complementary relationship between sine and cosine to rewrite sin(x + y) as Cosine (Start Fraction pi over 2 End Fraction minus (x + y) ). Apply the cosine sum identity. Then simplify, using sin( –y ) = –sin(y) and cos(–y) = cos(y).
<h3>What is trigonometry?</h3>
Trigonometry is the study of side, length and angles of the triangle. There are some formulas to solve trigonometry which we have to memorize.
Thus, the correct option is A.
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Molarity = number of moles of solvent / volume of solution (in liters)
We have the volume of solution = 350 ml = 0.35 liters and the molarity = 3 m
Substituting in the equation, we get:
3 = number of moles / 0.35
number of moles = 3 x 0.35 = 1.05moles
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Explanation:
