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MissTica
3 years ago
7

1+sin^2 x = 2-cos^2 x

Mathematics
1 answer:
Alinara [238K]3 years ago
3 0
1+sin²x=2-cos²x
Remenber:   sin²x+cos²x=1      ⇒sin²x=1-cos²x
 
1+sin²x=1+(1-cos²x)=2-cos² x       (this is true)

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Four consecutive odd integers add up to 288. which integers are they?
murzikaleks [220]
Let the smallest integer be x
x + (x+2) + (x+4) + (x+6) = 288
4x +12 =288
4x= 276
x = 69
The integers are 69, 71, 73 and 75
5 0
3 years ago
5 ft
Rom4ik [11]

Answer:

Assuming this is a rectangular prism the surface area would be 324ft^2.

Step-by-step explanation:

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3 0
3 years ago
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What is the domain of the function f(x) = sqrt x-9 + 5?
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Answer:

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Step-by-step explanation:

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3 years ago
Which statements are true
Fynjy0 [20]

Answer: 1. False. [∠XFG is lying between the one side and the line extended to the next side of the triangle, therefore it is an exterior angle.]

2.True. [∠EFG is lying between the two sides of the ΔEFG, therefore it is an interior angle of the triangle]

3.True. [∠FEZ is lying between the one side and the line extended to the other side of ΔEFG ]

4.False. [∠YGE is a straight line it is between the one side and the line extended to the same side ∴ it cannot be an exterior angle of the triangle ]

5. True.[∠EGF and FGY together make a straight line therefore they are supplementary angles]

6.False.[∠FEG and ∠FGE are both the interior angles of a triangle and we know that for supplementary angles they should lie on the same line or together make a straight line]

8 0
3 years ago
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Help pls will give brainliest
Dahasolnce [82]

Answer:

hello,

answer C

Step-by-step explanation:

area of the rectangle=2b*b=2b²

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Area in blue= 2b²-πc²/8

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