Преобразуйте выражение √5√2−1 + √(2−3)√2 +1
5√2 –1=(5√2–1)·(5√2+1)/(5√2+1)= =((5√2)2–1)/(5√2+1)=(50–1)/(5√2+1) √5√2–1=7/√5√2+1 √2+1=(√2+1)·(√2–1)/(√2–1)=(√2)2–12)/(√2–1)= =1/(√2–1) √√2+1=1/√√2–1