determine the value of x if 2 cos square 30 degrees plus x into sin square 60 degree minus 10 square 30 degree is equal to 10
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x = 106/9 if 2 Cos²30° + x Sin²60° - Tan²30° = 10
Step-by-step explanation:
2 Cos²30° + x Sin²60° - Tan²30° = 10
Cos²30° = 3/4
Tan²30° = 1/3
Sin²60° = 3/4
=> 2 (3/4) + x (3/4) - 1/3 = 10
Multiplying by 12 both sides
=> 18 + 9x - 4 = 120
=> 9x = 106
=> x = 106/9
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