200÷2×2=200
60-4=56
56÷2×2 = 56
200+56 = 256
Ans 256
5 years ago
WeiWei
Asked 5 years ago
SG
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Secondary 3
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Add Math: Geometry and Trigonometry
Find all the angles between 0° and 360°.
Only need to do (b) so ya but idk how
Replies
4
Qing Huei
.
5 years ago
Mr Chan
Good effort! In addition, tan⁻¹ (1 /√3) = 210°, so you have x = 270°. For tan⁻¹ (1 /√3) = 390°, 'x' is greater than 360° (not in range, so simply omit)
5 years ago
Mr Chan
Good effort! In addition, tan⁻¹ (1 /√3) = 210°, so you have x = 270°. For tan⁻¹ (1 /√3) = 390°, 'x' is greater than 360° (not in range, so simply omit)
5 years ago
Qing Huei
Oh yea... I had forgotten that x have to be 360° oops
5 years ago
Mr Chan
Haha yes, so apart from 90°, you have one more within 0° to 360°. For trigonometry questions, always check the range they ask for 👍🏼
5 years ago
Mr Chan
Haha yes, so apart from 90°, you have one more within 0° to 360°. For trigonometry questions, always check the range they ask for 👍🏼
5 years ago
iMath
Asked 5 years ago
SG
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Primary 6
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Number and Algebra
Please help. Thanks
Replies
2
happy
No. of bottles in the end
= 5÷1/7
=35
Total no. of bottle=35+5
No. of tarts in each bottle: 1400÷40=35 tarts