Question

17. Evaluate:
tan30° + Sin? 60°-3Cos60° + - tan60°- 2tan45°

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Answer 1

Answer:

Step-by-step explanation:

tan 30 = 1/√3

sin 60= √3/2

cos 60= 1/2

tan60= √3

tan 45= 1

so adding all the values, we get

1/√3 + √3/2 - √3 + √3 - 2

5/2√3 - 2 = (5- 4√3)/2

Answer 2

Answer:

1/√3 + √3/2 - 3(1/2) - √3 - 2(1)

1/√3 + √3/2 - 1/2 - √3 -2 = 0

1/√3 +/√3/2 =1/2 + √3 +2

1/√3 +√3/2 = 1/2 + 1.73 + 2

1/√3 +√3/2= .5 + 3.73

1/√3 +√3/2 = 3.78

0.57 + 0.86 = 3.78

1.43=3.78

2.35