Answer:
3rd option
Step-by-step explanation:
Using the identities
cot x = 
csc² x = 1 + cot² x
Given
tanθ = 
, then cotθ = 
csc²θ = 1 + ( )² = 1 + 
= 
cscθ = ± 
= ± 
Since θ is in 3rd quadrant, then cscθ < 0
cscθ = - × 
= - 
Answer:
Step-by-step explanation:
everything but m<10
The answer is Australia has a mixed ecosystem.
Eight out of the sixteen ecosystems in Australia include, deserts, tropical and subtropical regions, mediterranean woodlands, temperate forests and grasslands, montane lands and tundra.
The sum of the given terms will be -3x² + 8x - -9.
<h3>What is summation?</h3>
A summation, also abbreviated as a sum, is the outcome of adding two or more numbers or quantities. Here are always an integer number of terms in a summation.
There could be only two terms, but there could be one hundred, thousand, or a million. There are summations with an infinite set of parameters.
Given,
(8x - 2) + (-3x² - 7)
Opening bracket
⇒ 8x - 2 - 3x² - 7
Neighbour likely terms
⇒ -3x² + 8x -2 - 7
⇒ -3x² + 8x - 9
Hence the resultant sum of the given equations is -3x² + 8x - 9.
For more information about summation
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<span><span> x = -2 </span><span> x = -3 their you go hope this helps</span></span>
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