sint+cost 怎么推出,根号2乘以sin(t+45°)

问题描述:

sint+cost 怎么推出,根号2乘以sin(t+45°)

sint+cost =√2*(√2)/2*SINT+*(√2)/2*COST)
=√2*(COS45°*SINT+*SIN45°*COST)
=√2*SIN(45°+T)

sint+cost
=根号2(2分之根号2 sint + 2分之根号2 cost)
=根号2 sin(t+45°)