Math, asked by 721026venkat, 2 months ago

please solve its maths ​

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Answered by nikithaudatha66
0

Answer:

i.a + b \\ 5 {x}^{2}  - 3 {y}^{2}  +  {z}^{2}  - 2 {x}^{2}  + 3 {y}^{2}  - 4 {z}^{2}  \\  = 3 {x}^{2}  - 3 {z}^{2}

ii.a \:   - \: b \\ 5 {x}^{2}  - 3 {y}^{2}  +  {z}^{2}   -  ( - 2 {x}^{2}  + 3 {y}^{2} - 4 {z}^{2}  ) \\  = 5 {x}^{2}  - 3 {y}^{2}  +  {z}^{2}   + 2 {x}^{2}  - 3 {y}^{2}  + 4 {z}^{2}  \\  = 7 {x}^{2}  - 6 {y}^{2}  + 5 {z}^{2}

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