21. If a and ß are the zeros of the quadratic polynomial f(-x) = ar? +bx+c, then evaluate:
1 1
(i) a-B
1
2aß
B
1
a B
1
(iv) a b + aß?
(v) a* + B4
(vi)
aa + b aß + b
a
-+
(vi)
B
+
aa + b
aß + b
(viii) a
B
CE
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Answer:
21. If a and ß are the zeros of the quadratic polynomial f(-x) = ar? +bx+c, then evaluate:
1 1
(i) a-B
1
2aß
B
1
a B
1
(iv) a b + aß?
(v) a* + B4
(vi)
aa + b aß + b
a
-+
(vi)
B
+
aa + b
aß + b
(viii) a
B
CE
Step-by-step explanation:
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