If $$ {a={1+x\over 2-x}}$$, then find the value $$ {1\over {a+1}}+{2a+1\over{a^{2}-1}}$$ ?
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Q:
If $$ {a={1+x\over 2-x}}$$, then find the value $$ {1\over {a+1}}+{2a+1\over{a^{2}-1}}$$ ?
- 1$$ {(1+x)(2+x)\over {2x-1}}$$false
- 2$$ {(1-x)(2-x)\over {x-1}}$$false
- 3$$ {(1+x)(2-x)\over {2x-1}}$$true
- 4$$ {(1+x)(2-x)\over {2x+1}}$$false
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