$\dfrac{1-\cos135^\circ}{\sin135^\circ}=\dfrac{1-\left(\cos^2 67.5^\circ-\sin^2 67.5^\circ\right)}{2\sin67.5^\circ\cos67.5^\circ}=\dfrac{1-\left(1-\sin^2 67.5^\circ-\sin^2 67.5^\circ\right)}{2\sin67.5^\circ\cos67.5^\circ}=\medskip\\=\dfrac{2\sin^2 67.5^\circ}{2\sin67.5^\circ\cos67.5^\circ}=\dfrac{\sin 67.5^\circ}{\cos 67.5^\circ}=\tan 67.5^\circ$

3 0

3 years ago

The seating capacity of a stadium is 65,500. So far, 49,632

DerKrebs [107]

Answer:

a) Key words: 65,500 and 49,632

b) 65,500 - 49,632

c) The answer is 15868 seats are left

7 0

3 years ago

Simplify. √25a^2. <br> 40 points but reported if troll.

Levart [38]

I think that the answer is 5a.
The square root of 25 is 5 and the square root of a^2 is a.
Hope this helps and if possible could I please have the brainliest answer?

8 0

3 years ago

Pls help me I really don’t get it

aalyn [17]

I think its talking about proportional or non-proportional.. if it is its proportional

8 0

3 years ago