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melamori03 [73]
2 years ago
5

Simplify the expression 1-cos^2(t) / cos^2(t)

Mathematics
1 answer:
OLEGan [10]2 years ago
3 0

Answer: \tan^2 t

Step-by-step explanation:

\sin^{2} t+\cos^2 t=1 \implies 1-\cos^2 t=\sin^2 t\\\\\implies \frac{1-\cos^{2}t}{\cos ^2 t}=\frac{\sin ^2 t}{\cos^2 t}=\tan^2 t

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3 lb 9oz + 5lb 10 oz.
Eduardwww [97]

Answer:

9 lb 3 oz

Step-by-step explanation:

(3 + 5) lb + (9 + 10) oz

8 lb + 19 oz

16 oz = 1 lb

(8 + 1) lb + (19 - 16) ox

9 lb 3 oz

8 0
3 years ago
2. Find the value of x.
anyanavicka [17]
58-180=122 x=122 hope this helps have a nice nite!
5 0
3 years ago
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Pythagoras was born about 582 bc. Isaac Newton was born in 1643 ad. How many years apart were they born?
malfutka [58]
B.C. counts down to 0, and that's when A.D. starts counting up. That means you can add 582 and 1643, to get their difference. Pythagoras and Newton were born 2,225 years apart.
8 0
4 years ago
Find the value of each variable in each parallelogram. T
Pepsi [2]

A Parallelogram is a simple quadrilateral with two pairs of parallel sides. The opposite sides of a Parallelogram are of same length and opposite angles are same.

Step-by-step explanation:

Properties of a Parallelogram

  1. Both Pairs of Opposite sides are Parallel
  2. Both Pairs of Opposite sides are Congruent
  3. Both Pairs of Opposite angles are Congruent
  4. Consecutive angles are supplementary
  5. Daigonals bisect each other.

8 0
4 years ago
Tell whether the ordered pair is a solution of the system of equations.
katovenus [111]

Answer:

2x + y = 5

y = 4x – 1

Substitute (2, 1) into system, then:

2x + y = 5  => 2 x 2 + 1 = 5 => 5 = 5 (satisfied)

y = 4x– 1   => 4 x 2 - 1 = 1  => -7 = 1 (not satisfied)

=> Option 3 is correct.

Hope this helps!

:)

8 0
3 years ago
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