要过程LOG1/√2(4的五次方+8的2次方)=?log1/√2(4的五次方+8的2次方)=?
问题描述:
要过程LOG1/√2(4的五次方+8的2次方)=?
log1/√2(4的五次方+8的2次方)=?
答
log1/√2(4^5+8^2)
=log2^(-1/2) (4^5+8^2)
=-2log2(2^10+2^6)
=-2log2[2^6(2^4+1)]
=-2log2(2^6)-2log2(2^4+1)
=-12-2log2(17)