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pogonyaev
3 years ago
12

Name two corresponding angles to <1?

Mathematics
1 answer:
masya89 [10]3 years ago
7 0
C
hope this helps :)
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Please someone help me. It's about proving related to transformation of trigonometric ratios. Thank you!!​
kvasek [131]

Answer:

see explanation

Step-by-step explanation:

Using sum to product identities

cos x - cos y = - 2sin(\frac{x+y}{2} )sin(\frac{x-y}{2} ) = 2sin(\frac{x+y}{2} )sin(\frac{y-x}{2} )

cos x + cos y = 2cos(\frac{x+y}{2} )cos(\frac{x-y}{2} )

Note that

sin10° = sin(90 - 10)° = cos80°

Thus

\frac{2sin(\frac{10+80}{2})sin(\frac{80-10}{2})  }{2cos(\frac{10+80}{2})cos(\frac{80-10}{2})  } ← cancel 2 from numerator/ denominator

= \frac{sin45}{cos45} × \frac{sin35}{cos35}

= tan45° × tan35° { tan45° = 1 ]

= 1 × tan35°

= tan35° ← as required

5 0
3 years ago
Read 2 more answers
(7,9) has a slope of 1. Write equation in slope intercept form
Nadya [2.5K]

Step-by-step explanation:

<em>Here, slope of the line (m) = 1</em>

<em>Here, slope of the line (m) = 1And, the line passes through the point (7,9)</em>

<em>Equation </em><em>of </em><em>the </em><em>line </em><em>is </em><em>given </em><em>by </em>

<em>y </em><em>-</em><em> </em><em>y1</em><em> </em><em>=</em><em> </em><em>m </em><em>(</em><em> </em><em>x </em><em>-</em><em> </em><em>x</em><em>1</em><em> </em><em>)</em>

<em>y </em><em>-</em><em> </em><em>9</em><em> </em><em>=</em><em> </em><em>1</em><em>(</em><em> </em><em>x </em><em>-</em><em> </em><em>7</em><em>)</em>

<em>y </em><em>-</em><em> </em><em>9</em><em> </em><em>=</em><em> </em><em>x </em><em>-</em><em>7</em>

<em>x </em><em>-</em><em>7</em><em>+</em><em>9</em><em>-</em><em>y</em><em> </em><em>=</em><em> </em><em>0</em>

<em>x </em><em>-</em><em> </em><em>y </em><em>+</em><em> </em><em>2</em><em> </em><em>=</em><em> </em><em>0</em><em> </em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>is </em><em>the </em><em>required </em><em>equation </em><em>of </em><em>the </em><em>line. </em>

4 0
3 years ago
Find the slope of the line that passes through the points (10,8) and (4,12)​
JulsSmile [24]

Answer:

The slope is -2/3

Step-by-step explanation:

To find the slope of a line between two points, we use the equation

m = (y2-y1)/ (x2-x1)

where (x1,y1) and (x2,y2) are the two points

m = (12-8)/(4-10)

   = 4/-6

   = -2/3

The slope is -2/3

6 0
3 years ago
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The points (1,-23) and (6,r) lie on a line with slope 4. Find the missing coordinate r.
Hatshy [7]

Answer:

-3

Step-by-step explanation:

6 0
3 years ago
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Calculate the slope of a line ​
jeka94
M=-1/2 because you do y1-y2 over x1-x2 and end up with 2/-4 but simplified is -1/2
6 0
3 years ago
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