What is the numerical solution of sec^2(-pi/4)?

1 answer:

7 0

Sec²(-π/4)

sec x= 1/ cos x
cos(-π/4)=cos(π/4) as even function
cos(π/4) = (√2)/2
sec(-π/4) =1/(cos(-π/4))=1/cos(π/4)= 2/(√2)

sec²(-π/4)=( 2/(√2))²= 4/2=2

sec²(-π/4) = 2

You might be interested in

Software that requires a monthly subscription fee is often called

enyata [817]

Software as a service that is the answer to your question.Hope this helps!!

8 0

3 years ago

How to find the surface area of it

larisa [96]

6m times 8m=48m times 6m=288m times 10m equals 2,880

3 0

3 years ago

A hang glider dropped his cell phone from a height of

elixir [45]

Answer:

It took the cell phone 4.15 seconds to reach the ground

Step-by-step explanation:

The formula is $t=\frac{\sqrt{h}}{4}$ , where t is the time and h is the height

The height of that the cell phone dropped from it is 275 feet above the ground

∴ h = 275

- Substitute the value of h in the formula to find t

∵ $t=\frac{\sqrt{275}}{4}$

∴ $t=\frac{5}{4}\sqrt{11}$

- Change it to decimal

∴ t = 4.15 seconds to the nearest 2 decimal places

It took the cell phone 4.15 seconds to reach the ground

5 0

4 years ago

If Johnny had 20 complete living room outfits, disregard color scheme, how many different sets of five complete outfits could be

Reil [10]

Answer:

the answer would be 5.

Step-by-step explanation:

ty for reading :P

5 0

3 years ago

PLS HELP PLS HELp PLEASE

Orlov [11]

Download Photomath, it actually helps with problems like these!

6 0

3 years ago