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If tana tanb=k, show that(1+k)cos(a+b)=(1-k)cos(a-b)

Closing a credit card usually _your debt ratio.a. increasesb. decreasesc. improvesd. has no effect on

Lv beethoven software supplies customized software to a managed healthcare system. lv beethoven software's costs for the software is $1,723,000. lv beethoven software sells the software to the healthcare system for $3,816,981.10. overhead expenses are estimated at 47% of the selling price. what is lv beethoven software's net profit to the nearest dollar?