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dezoksy [38]
3 years ago
14

Factorise the following a) 2sin^2(x) - 3sin (x) + 1 b) 2x^2 + 3 square 3x - 6

Mathematics
1 answer:
Aloiza [94]3 years ago
7 0
What is the second question? Don’t seem to understand what you’re asking
But the first is
(2sinx-1)(Sinx-1)
Treat it the sinx as you would with normal factorising equations with x. If it helps you, you could always substitute the sinx as a U, and then change it back to sinx once you have factorised it
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During a catered lunch, an average of 4 cups of tea are poured per minute. The lunch will last 2 hours. How many gallons of tea
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Answer:

30 gallons

Step-by-step explanation:

step 1 right it out

2 hour is 120 mins and 4 cups are poured per min

step 2 Equation time

so your equation should be

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step 3 solve it out

1 times 120 is 120 is 4 times 120 is 480

but that is not the answer 480 is the amount of CUPS that are used for 2 hrs

so all u have to do is now convert

step 4 convert

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x=30 gallons

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