若logcosa(sina)的绝对值大于logsina(cosa)的绝对值,a为锐角,那a的取值范围

若logcosa(sina)的绝对值大于logsina(cosa)的绝对值,a为锐角,那a的取值范围
若logcosa(sina)的绝对值大于logsina(cosa)的绝对值,a为锐角,那a的取值范围

若logcosa(sina)的绝对值大于logsina(cosa)的绝对值,a为锐角,那a的取值范围
01
logcosa(sina)>1=logcosa(cosa)
sina

Quad-band GSM/GPRS/EDGE (850 / 900 / 1800 / 1900MHz)
Quad-band UMTS (2100 / 1900 / 850 / 800MHz)
3.2 inch, 480 x 360 pixels touchscreen display
Full QWERTY keyboard
Wi-Fi 802.11b/g/n

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Quad-band GSM/GPRS/EDGE (850 / 900 / 1800 / 1900MHz)
Quad-band UMTS (2100 / 1900 / 850 / 800MHz)
3.2 inch, 480 x 360 pixels touchscreen display
Full QWERTY keyboard
Wi-Fi 802.11b/g/n
GPS
Bluetooth 2.1
3.5 mm headset jack
Full HTML tabbed browser (based on WebKit) with pinch-to-zoom capability
BlackBerry Enterprise Service and BlackBerry Internet Service
Social networking integration (Facebook, Twitter, MySpace)
5MP camera with flash
512MB RAM
4GB onboard memory
4GB memory card included
1300 mAh battery. Talk time: up to 5.5 hours; stand-by time: up to 13 days (on 3G)
111 x 62 x 14.6 mm
161.1 grams
According to RIM, the BlackBerry Torch 9800 will be available via AT&T starting August 12, for $199 on contract.? You can check out the new smartphone here at AT&T, or here at RIM. Follow Us on:
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Unwired View Wireless News,cartier store, Views and Reviews Home Contact Archives Advertise with us About Us AT&T’s BlackBerry Torch (9800 slider) with BlackBerry OS 6 gets official By Florin on 03 Aug 10 for left, and for right -->
Here’s what the new BlackBerry has to offer (official photos included after the specs list):
The Torch appears both on RIM’s and AT&T’s websites and,MBT shoe, as expected, it will be available via the second-largest US carrier later this month.
Research In Motion has finally unveiled the BlackBerry Torch (aka BlackBerry 9800) ? its first smartphone to feature a sliding QWERTY keyboard,coach handbags outlet, and the first to run the all new BlackBerry OS 6 that we’ve been hearing so much about lately.
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