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Sloan [31]
2 years ago
11

Verify the identity. Justify each step.

Mathematics
1 answer:
pishuonlain [190]2 years ago
6 0
From the trigonometry:

tan θ = (sin θ) / (cos θ)
cot θ = (cos θ) / (sin θ)

∴ tan θ + cot θ = (sin θ) / (cos θ)  +  (cos θ) / (sin θ)
  = [ sin² θ + cos² θ]/( sin θ cos θ) = 1 /( sin θ cos θ )


note :   sin² θ + cos² θ = 1

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How do i solve this question
alex41 [277]

Answer:

18.18

Step-by-step explanation:

total sum of angle of quadrilateral is 360

70+60+ 7x-4+4x-3=360

160-7 +11x =360

153 +11x =360

11x=360-153

x=207/11

x=18.18

7 0
2 years ago
Math <br><br><br> help pls!!<br><br> solve for x and y
Elan Coil [88]

Answer:

x = 7 ,  y= - 6

Step-by-step explanation:

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so, now by simultaneous equations,

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if y = -6

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8 0
2 years ago
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faltersainse [42]

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Do 14 x 2/7 which is 4

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7 0
3 years ago
Need to know how to measure the radius of m
denis-greek [22]

Answer:

B. 7.4 units

Step-by-step explanation:

If M is the center then radius is just distance from M to outer edge.

4 0
2 years ago
Sadie made a rectangular cake. If she wants to cut it into 1/8 portions,how many portions can she cut?
amid [387]

Answer:

  8

Step-by-step explanation:

If each portion is 1/8 of the cake, there are 8 equal-size portions. That is what the denominator of the fraction means.

3 0
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