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grandymaker [24]
3 years ago
9

Pllzzzzzzz help now it’s due today

Mathematics
1 answer:
Yuri [45]3 years ago
3 0

Answer:

Step-by-step explanation:

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Simplify without using the calculator or the sin tables.​
katovenus [111]

Answer:

1/8

Step-by-step explanation:

sin²(π/8) − cos⁴(3π/8)

Use power reduction formulas:

1/2 (1 − cos(2×π/8)) − 1/8 (3 + 4 cos(2×3π/8) + cos(4×3π/8))

Simplify:

1/2 (1 − cos(π/4)) − 1/8 (3 + 4 cos(3π/4) + cos(3π/2))

1/2 (1 − √2/2) − 1/8 (3 + 4 (-√2/2) + 0)

1/2 − √2/4 − 1/8 (3 − 2√2)

1/2 − √2/4 − 3/8 +√2/4

1/2 − 3/8

1/8

7 0
3 years ago
How to find a volume of a triangular prism​
arlik [135]

Answer:

Remember the formula for calculating volume is: Volume = Area by height. V = A X h.

For a triangle the area is calculated using the formula: Area = half of base by altitude. A = 0.5 X b X a.

So to calculate the volume of a triangular prism, the formula is: V = 0.5 X b X a X h.

Step-by-step explanation:

hope it helps <33!

6 0
3 years ago
Read 2 more answers
Assignment
Paha777 [63]
I don’t know how to solve its very hard sorry I can’t even solve it ;(
8 0
2 years ago
Can you explain please I don’t understand?
Angelina_Jolie [31]

don't be alarmed the two lines just mean absolute value, the problem is asking what is m. the problem is asking what number multipyed by 2, subtracted by 1 will give you 3?

2x2=4 right?

so 4-1=3 there!

m=4

so the problem is 2(4)-1=3

i hope i explained well enough!

5 0
3 years ago
Read 2 more answers
Pretend like i said sumn funny
vekshin1

Answer:

ok hahahahahahahahahha

5 0
3 years ago
Read 2 more answers
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