已知a模=4b模=3 (1)若a与b的夹角为60°求(a+2b)·(a-3b)·a+2b的模·a-3b的模

已知a模=4b模=3(1)若a与b的夹角为60°求(a+2b)·(a-3b)·a+2b的模·a-3b的模(2)若(2a-3b)·(2a+b)=61求a与b的夹角... 已知a模=4b模=3 (1)若a与b的夹角为60°求(a+2b)·(a-3b)·a+2b的模·a-3b的模 (2)若(2a-3b)·(2a+b)=61求a与b的夹角 展开
airmaxshoppe
2011-07-05 · TA获得超过399个赞
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hair the right way to run

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How you can correctly keep the hairdressing methods. Rinse hair with tepid to warm water is definitely a essential step, it is totally clean the hair of dead cells, dandruff, oily impurities and fat in the process, occupies a pivotal position, if not the head of hair foam,ceramic hair straightener, leather clean the debris that stay with the hair base material may cause corrosion and harm hair, hair, hair gloss and have an effect on the hair's toughness. Conditioner (Rinse) is an accessory to safeguard the hair,chi hair products, water contains minerals, with increased minerals, water the greater tough, result in the hair lost its luster after washing, and Rinse the most crucial role inside the hair outside form a protective film, Run contains all sorts of hair proteins, can penetrate the outer layer of damaged hair and increase the organization.

Its functions are: 1, it is possible to fork, hair breakage along with other damage to the most effective, as long as Rinse the hair after the formation of protective film, but also in order to avoid excessive evaporation of moisture in the hair, which for dry or by blowing hair, dye,good hair straighteners, hot hair who have been damaged, too, plus more. 2 Rinse the hair doesn't just protect the head of hair to avoid by wind, sun, rain, erosion as well as other natural factors, but additionally to stop blowing, dyeing, ironing along with other harm caused by human factors. 3 Rinse can be difficult to improve the management of tangled hair, excessive hair hair, hair, or hot treatment, frequently easy to cause hair entangled, challenging to comb, and only use Rinse in damaged form a protective film around the hair leaving hair supple, an easy task to take.

Even though efficacy of multi-Rinse,reviews chi hair straightener, and every individual based on their actual hair to make use of, cannot blindly use: (1) can not use oily hair rinse fine, oily hair because the hair has excessive secretion of oil ( two) neutral without hot hair, dye as well as other chemical treatments are rarely utilized. Simply speaking, Rinse effect varies, put simply,Bumpits Barrette, for A's not necessarily suitable for B, should be considered their hair, bushy degree could be. Also note two points: 1, if utilized correctly, it'll turn out to be supple and good clean; two, if used improperly, such as the excessive amount of hair will look greasy people feel discomfort.
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猪猪爱大宝
2011-07-05
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1) a*a+2ab-3ab-6bb=16-6-54=-44
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