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Litmus paper is created using dyes extracted from lichens. It is an essential tool in chemistry for determining the acidic or basic nature of substances, changing color based on the pH level of the solution it is exposed to.
Find the HCF of 15x2 + 8x – 12, 3x² + x – 2, 3x² - 2x, 9x² - 12x + 4
15(2/9) + 11(2/9) + 17(1/9) + 13(4/9) = ?
41.66% of 888 + 66.66% of 1176 = ?2 - 4√ 16
[123 ÷ 8 ÷ 9] × 144 = ? + 12 × 5
√4761 ÷ 23 + √12769 = ? × 58
540240 ÷ 24 ÷ 25 =?
162 ÷ [51 – {29 – (9 – 6̅ ̅+̅ ̅7̅ )}]=?