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1

deepaksoniGuru

Asked: March 15, 2021In: ICSE

If A is an acute angle and sec A = 17/8, find all other trigonometric ratios of angle A (using trigonometric identities).

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Book- ML Aggarwal Board- ICSE Publication- Avichal Chapter- Trigonometric Identities If A is an acute angle and sec A = 17/8, ...Read more

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deepaksoniGuru

Asked: March 16, 2021In: ICSE

If sec θ + tan θ = m and sec θ – tan θ = n, prove that mn = 1.

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This is an important question from the Book- ML Aggarwal Board- ICSE Publication- Avichal Chapter- Trigonometric Identities Chapter number-18 If sec ...Read more

1

deepaksoniGuru

Asked: March 16, 2021In: ICSE

If the sum of two smaller sides of a right-angled triangle is 17cm and the perimeter is 30cm, then find the area of the triangle.

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This question has been taken from Book:- ML aggarwal, Avichal publication, class10th, quadratic equation in one variable, chapter 5, exercise ...Read more

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deepaksoniGuru

Asked: March 17, 2021In: ICSE

Find the sub-duplicate ratio of (i) 9: 16 (ii) ¼: 1/9 (iii) 9a2: 49b2

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This is an important ques from the Book ML Aggarwal class 10th,, chapter – 7, ratio and proportion. In this question ...Read more

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deepaksoniGuru

Asked: March 18, 2021In: ICSE

If x/a = y/b = z/c then prove that (i)x³/a²+ y³/b²+z³/c²=(x+y+z)³/(a+b+c)² (ii) [a²x²+b²y²+c²z²/a³x+b³y+c³z] ³=xyz/abc (iii)(ax-by) /(a+b)(x-y) +(by-cz) /(b+c)(y-z) +(cz-ax) /(c+a) (z-x) =3

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exam oriented an important question from ML aggarwal, class 10th, chapter 7, ratio and proportion, Avichal publication It is given that ...Read more

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deepaksoniGuru

Asked: March 19, 2021In: ICSE

If (ma + nb): b :: (mc + nd): d, prove that a, b, c, d are in proportion.

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exam oriented an important question from ML aggarwal, class 10th, chapter 7, ratio and proportion, Avichal publication In this question we ...Read more

1

deepaksoniGuru

Asked: March 26, 2021In: ICSE

Question 5. (a) In the figure (i) given below, M, A, B, N are points on a circle having centre O. AN and MB cut at Y. If ∠NYB = 50° and ∠YNB = 20°, find ∠MAN and the reflex angle MON.

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This is an important and exam oriented question from Chapter name- circles Topic – Angle properties of circles Chapter number- ...Read more

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If A is an acute angle and sec A = 17/8, find all other trigonometric ratios of angle A (using trigonometric identities).

If sec θ + tan θ = m and sec θ – tan θ = n, prove that mn = 1.

If the sum of two smaller sides of a right-angled triangle is 17cm and the perimeter is 30cm, then find the area of the triangle.

Find the sub-duplicate ratio of (i) 9: 16 (ii) ¼: 1/9 (iii) 9a2: 49b2

If x/a = y/b = z/c then prove that (i)x³/a²+ y³/b²+z³/c²=(x+y+z)³/(a+b+c)² (ii) [a²x²+b²y²+c²z²/a³x+b³y+c³z] ³=xyz/abc (iii)(ax-by) /(a+b)(x-y) +(by-cz) /(b+c)(y-z) +(cz-ax) /(c+a) (z-x) =3

If (ma + nb): b :: (mc + nd): d, prove that a, b, c, d are in proportion.

Question 5. (a) In the figure (i) given below, M, A, B, N are points on a circle having centre O. AN and MB cut at Y. If ∠NYB = 50° and ∠YNB = 20°, find ∠MAN and the reflex angle MON.