Question

Find the value of 2 cos^2 45

+ sin 30

+ 1/2 cos0

- tan 45

.
​

Answer 1

Answer:

1) 5/2

2) 5/2

3) 1

Step-by-step explanation:

2cos^2*45 = 2(1)^2 = 2×1 = 2

1 ] 2cos^2*45 + sin 30 = 2 + 1/2 = 5/2

2 ] 2cos^2*45 + 1/2 Cos 0 = 2 + 1/2 × 1 = 2 + 1/2 = 5/2

3 ]

2cos^2*45 - tan45 = 2 - 1 = 1