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Tutorial 5 Question 2c. First, we make sure that the right hand side is zero. OH YAY! IT’S ALREADY ZERO!. Tutorial 5 Question 2c. Then, we factorize the left hand side. I CAN’T FACTORIZE THIS!. Tutorial 5 Question 1c. Okay, let’s try another method. Let’s complete the square.
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Tutorial 5 Question 2c • First, we make sure that the right hand side is zero.OH YAY! IT’S ALREADY ZERO!
Tutorial 5 Question 2c • Then, we factorize the left hand side. I CAN’T FACTORIZE THIS!
Tutorial 5 Question 1c • Okay, let’s try another method.Let’s complete the square.
Tutorial 5 Question 2c • Observe that the left hand side is always positive.You need to give the explanation to get the full marks. Since for all ,therefore, for all Hence, has no solution when
Tutorial 5 Question 2c The question asks for the solution set, so answer is an alternative way to write is
Tutorial 5 Question 2c The question asks for the solution set, so answer is an alternative way to write is Note: is not the right symbol for the empty set. That set is a set containing an empty set. (Something like a bag with an empty bag inside of it.)