Question

5. Evaluate: v2 tan 45º + cos²30° - sin’60°​

Answer 1

Answer:0.88

Step-by-step explanation:

tan 45=1

cos 30=(√3)/2

sin 60=(√3)/2

1+((√3)/2)^2-(√3)/2

1+(3/4)-(√3)/2

(4+3-2(√3))/4

(7-2(±1.73))/4

(7-3.46)/4=0.88

or

(7+3.46)/4=2.61

Answer 2

Answer:

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