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Volgvan
2 years ago
6

1/secA-tanA - 1 /secA+tanA So the answer comes 2tanA/sec^2 A-tan^2A how ??.​

Mathematics
1 answer:
solniwko [45]2 years ago
7 0

Answer:

Hope it helps

thanks ।।।।।।।।।।।।।

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zheka24 [161]
Where is your question?
5 0
3 years ago
In a state where license plates contain six digits, what is the probability that the license number of a randomly selected car h
andre [41]

Answer:

Step-by-step explanation:

Given : In a state where license plates contain six digits.

Probability of that a number is 9 = \dfrac{1}{10}   [Since total digits = 10]

We assume that each digit of the license number is randomly selected  .

Since each digit in the license plate is independent from the other  and there is only two possible outcomes for given case (either 9 or not), so we can use Binomial.

Binomial probability formula:  P(X=x)=^nC_xp^x(1-p)^{n-x}

, where n= total trials , p = probability for each success.

Let x be the number of 9s in the license plate number.

X\sim Bin(n=6, p=\dfrac{1}{10}})

Then, the probability that the license number of a randomly selected car has exactly two 9's will be :

P(X=2)=^6C_2(\dfrac{1}{10})^2(1-\dfrac{1}{10})^{6-2}\\\\=\dfrac{6!}{2!(6-2)!}(\dfrac{1}{100})(\dfrac{9}{10})^4=0.098415

Hence, the required probability = 0.098415

5 0
3 years ago
Dan built a cubed shaped toy box of wood for his daughter. Each side of the toy box measures 2feet. How much wood did Dan use to
ankoles [38]

Answer:

12 feet is what i believe is the answer

Step-by-step explanation:

Brainleist :)

8 0
3 years ago
What is 2 3/7 times 1/2
avanturin [10]

Answer:

1 3/14

Step-by-step explanation:

You divide everything by 2 because it is a fraction.

3 0
3 years ago
Pls help plsssssssssssssssssssssss
iren [92.7K]

Answer:

It would be 14 because since each book is 3.5cm thick times that by 4 and get 14.

8 0
3 years ago
Read 2 more answers
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