2cos30°-tan45°-(1−tan60°)2=______ .
The original formula is 2 × 32-1 - | 1-3 | = 3-1 + 1-3 = 0
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- 1. Calculate the value of (2cos30 ° / 3) ^ 2003 · (3tan30 °) ^ 2004
- 2. How much is 36 degrees 54 seconds + 143 degrees 6 seconds
- 3. Simple calculation of 26.39 * 36 + 26.39 * 83-263.9 * 1.9
- 4. 3tan30°-cot45°+2sin60°+cos60°=?
- 5. What's the meaning of 3tan 30, 3cos 45 and 2Sin 60
- 6. How much is 2sin60
- 7. 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)
- 8. Tan45 = 1, conversely, 1 equals tan45 degrees
- 9. Calculation: tan45 ° and 2cos45 ° respectively=______ .
- 10. 3795 minus 1130 equals 2665 165 times 23 equals 3795 2665 divided by 65 equals 41 to find the comprehensive formula:
- 11. 3tan30 radical 1-2tan60 + tan2 power 60 ° + tan45 times cos45
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