Question

evaluate 2 tan² 45⁰ + cos² 30⁰ - sin²60⁰ evaluate​

Answer 1

Answer:

Using standard angles,

2(1)² + (√3/2)² - (√3/2)²

2+3/4-3/4

2

Step-by-step explanation:

Answer 2

Answer:

HEY MATE HERE'S YOUR ANSWER

Step-by-step explanation

We know

tan 45 = 1

cos 30 = root 3/2

sin 60 = root 3/2

NOW,

2(1 + (√3/2)² + (√3/2)²

2( 1 + ( 3/4) + ( 3/4)

2 + 6/8 + 6/8

NOW TAKING L.C.M

=2/1 +6/8 +6/8

=16 + 6 + 6/8

=28/8

=7/2

=3.5  

therefore your answer is 3.5

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