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Important questions from sequence and series.

Simplify: 1/(x-1)² - 2x/(x³-1)

In a G.P the second and fifth teams are 6 and 162, respectively. Which term of the sequence is 1458?

Problem related to two digits number.

Important question for SEE from the set.

Challenging question from the set.

Two cards are drawn rtrandomly from a well shuffled pack of 52 cards without replacement. Draw a

If fourth and fourteenth terms of an AP are 36 and -4 respectively. Find the term whose value is 24.

Find the T.S.A. of a given solid figure...

Tree diagram without replacement condition...

A couple is planning to have three children, then what is the probability that all three are sons?

If A+B+C=180⁰ then prove that: sinA/(cosB.cosC)+sinB/(cosC.CosA)+sinC/(cosA.cosB) =2tanA.tanB.tanC

Solve: √3/sin 2A + 1/cos 2A = 4 (0⁰ ≤ A ≤ 90⁰)

If 4cos A.cos B = 1 and tan A + tan B = 2, then find the value of (A+B).

Prove that: cos A.cos(120⁰-A).cos(120⁰+A) = 1/4 cos 3A

Prove that: sin 20⁰.sin 40⁰.sin 80⁰ = √3/8

Prove that (cos A - cos B)² + (sin A - sin B)² = 4sin² ((A-B)/2)

Full concept of determinants of 3 × 3 matrix.

Rule of debit and credit in the personal account. #account #finalaccount

Important question from depreciation...

Important question from trigonometry...

Prove that: tan(pi/4 + A/2) = sec A + tan A = Root under [(1+sin A)/(1-sin A)]

Prove that: tan(A/2 - π/4) - cot(A/2 - π/4) = 2sin A.sec A

What is a personal account??? #account #education #journal #class10th #learning