3tan30°-cot45°+2sin60°+cos60°=?
=3 * radical 1 / 3 - 1 + 2 * radical 3 / 2 + 1 / 2 = 2 radical 3 - (1 / 2)
RELATED INFORMATIONS
- 1. What's the meaning of 3tan 30, 3cos 45 and 2Sin 60
- 2. How much is 2sin60
- 3. A problem of tan45-cot15 tan45=1 cot15=tan75 The original formula = (tan45-tan75) / (1 + tan75) =(tan45-tan75)/(1+tan45tan75) =tan(45-75) =tan(-30) =-√3/3 How does the original formula = (tan45-tan75) / (1 + tan75) become the following one =(tan45-tan75)/(1+tan45tan75)
- 4. Tan45 = 1, conversely, 1 equals tan45 degrees
- 5. Calculation: tan45 ° and 2cos45 ° respectively=______ .
- 6. 3795 minus 1130 equals 2665 165 times 23 equals 3795 2665 divided by 65 equals 41 to find the comprehensive formula:
- 7. What is a number divided by itself What do two quantities of 1:1 mean
- 8. The second power of (- 3) - the third power of (- 5) - the second power of (- 2 / 5) - 18 divided by the second power of (- 3)
- 9. Solving equation (x divided by 4) ^ 2 + (20-x) divided by the square of 4 = 17
- 10. Add 11 to a number, subtract 12, multiply 13, and divide 14 to get 26. "What is this number?
- 11. Simple calculation of 26.39 * 36 + 26.39 * 83-263.9 * 1.9
- 12. How much is 36 degrees 54 seconds + 143 degrees 6 seconds
- 13. Calculate the value of (2cos30 ° / 3) ^ 2003 · (3tan30 °) ^ 2004
- 14. 2cos30°-tan45°-(1−tan60°)2=______ .
- 15. 3tan30 radical 1-2tan60 + tan2 power 60 ° + tan45 times cos45
- 16. Who can help me sum up some knowledge about right triangle
- 17. Can acute trigonometric function only be used in right triangle
- 18. As shown in the figure, the cross section of a reservoir dam is an isosceles trapezoid with a crest width of 6 meters and a dam height of 10 meters. The slope of slope AB is 1:2 (AR: BR). Now, if the crest width and slope gradient are unchanged, how much earthwork is needed to reinforce a 50 meter long dam
- 19. After executing the statement "x = (a = 3, B = a --", what are the values of X, a and B in turn? How to calculate them?
- 20. On the calculation of acute angle trigonometric function |Tan 45 ° - Tan 60 °| + under root sign (Sin & # 178; 60 ° - 2cos 30 ° + 1)