3 years ago

State the range of the following:

Mathematics

2 answers:

madam [21]3 years ago

8 0

Answer:

-3, -2, 1

Step-by-step explanation:

Nataliya [291]3 years ago

7 0

Step-by-step explanation:

Range of the following:

-3,-2,1

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3 years ago

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2 years ago

Cos^3a-sin^3a/cosa-sina

KIM [24]

Answer:

1 + cosa sina

Step-by-step explanation:

$\frac{cos^3a-sin^3a}{cosa-sina}$

cos³a - sin³a ← is a difference of cubes and factors in general as

a³ - b³ = (a - b)(a² + ab + b²) , then

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= (cosa - sina )(cos²a + cosa sina + sin²a)

= (cosa - sina)(1 + cosa sina) [ sin²a + cos²a = 1 ]

Then

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2 years ago