Consider x=4 ⁻¹ ( 1 5 ), y= ⁻¹ ( 1 70 ) and z= ⁻¹ ( 1 99 ) What is x-y+z equal to?

Step-by-step solution

x-y= ⁻¹ 8281 8450 ⁻¹ | 8281 8450 |+ ⁻¹ ( 1 99 )= ⁻¹ | 8281 8450 + 1 99 1- 8281 8450 1 99 | aligned & = ⁻¹ | 828269 836550 828269 836550 |=1 & ⁻¹=(1)= 4 aligned Option (D) is correct.