Prove that (1+ cotA-cosecA)(1+tanA+secA)=2
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this is proved that left hand side = right hand side
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Wireless communication technology transmits information over the air using electromagnetic waves like IR (Infrared), RF (Radio Frequency), satellite, etc. For example, GPS, Wi-Fi, satellite television, wireless computer parts, wireless phones that include 3G and 4G networks, and Bluetooth.
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