将书含,你好!
解:-2²-[-1/4+(1-1/5×0.6)÷(-2)²]
=-4-[-1/4+(1-0.12)÷(-2)²]
=-4-(-1/4+0.88÷4)
=-4+0.25-0.22
=-3.97
-2²-[-1/4+(1-1/5×0.6)÷(-2)²]
解:原式=-4-[-1/4+(1-1/5×0.6)÷4]
=-4-[-1/4+0.88÷4]
=-4-[-1/4+0.22]
=-4+0.03
=-3.97