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blagie [28]
3 years ago
13

Sin ( 90 + theta ) = cos theta prove^

Mathematics
1 answer:
liberstina [14]3 years ago
5 0
We will use additional formula:
sin ( 90°+ theta ) = sin 90° * cos(theta) + cos 90° * sin(theta)=
= 1 * cos(theta) + 0 * sin(theta)= cos (theta)           It is proved.
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Waf number us 20% of 40
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steposvetlana [31]

Answer:

Step-by-step explanation:

i'll do a few of them

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2)

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4)  6 inch  plus an eighth inch plus a sixteenth inch

     6 +  1/8 + 1/16         read the tick marks

     6 + 2/16 +  1/16       find a common denominators

     6 and 3/16              add the sixteenth numerator

5)   nine inch plus a quarter inch plus an eighth inch

     9  + 1/4 + 1/8          read the tick marks

     9 + 2/8 + 1/8          find a common denominators

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5 0
3 years ago
Evaluate -5 - 15 + 4 + 15
dexar [7]

Answer:

Step-by-step explanation:

-5+-15= -20

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7 0
3 years ago
Read 2 more answers
What is the equation in point-slope form of the line that passes through the point (3, −2) and has a slope of 23 ?
Oksanka [162]
Use the point slope formula. then, substitute the values inside the formula.

x1 =3
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y -y1 = m ( x - x1)

y - (-2) = 23 (x - 3)

y + 2 = 23 ( x - 3)

3 0
3 years ago
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