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Mathematical Formulas (CSAT)
(a + b)(a – b) = a2 – b2
(a + b
Mathematical Formulas (CSAT) (a + b)(a – b) = a2 – b2 (a + b + c)2 = a2 + b2 + c2 + 2(ab + bc + ca) (a ± b)2 = a2 + b2± 2ab (a + b + c + d)2 = a...
Mathematical Formulas (CSAT) (a + b)(a – b) = a2 – b2 (a + b + c)2 = a2 + b2 + c2 + 2(ab + bc + ca) (a ± b)2 = a2 + b2± 2ab (a + b + c + d)2 = a...
Recommended books for preparation of upsc preliems
History
Recommended books for preparation of upsc preliems History (Indian History and Indian National Movement) Essential: NCERT books IX, X, XI, XI...
Recommended books for preparation of upsc preliems History (Indian History and Indian National Movement) Essential: NCERT books IX, X, XI, XI...
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