Question

Evaluate tan^2 60 degrees + sin^2 45 degrees without using trigonometric tables or calculator.
The answer is
a. 5
b. 7/3
c. 1/2
d. 7/2

Answer 1

See we have some standard values that we have to remember:

Here I tell you:

\[\large \sin(45) = \frac{1}{\sqrt{2}}\]

\[\large \tan(60) = \sqrt{3}\]

So square each of them and add and tell me what do you get ?

Answer 2

Wait...

Answer 3

Absolutely..

Answer 4

Did not you get 3.5 ??

Answer 5

Yes, is that the correct answer?

Answer 6

D. Thank you!

Answer 7

In choices divide the fractions : 7/3 = ???


7/2 = ???

Answer 8

Yes you are right...