Doubtly
@Doubtly · Joined Feb 2021
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- The sentence are statement? Justify. Sky is red. A statement is a declarative sentence if it is either true or false but not both. The given sentence “sky is Red” is false. Hence, it is a f... 1
- The converse of the statement “If sun is not shining, then sky is filled with clouds” is Let p:Sun is not shining. q:Sky is filled with clouds. So, The converse of the statement p→ q is q→ p. Therefore, q→ p : If sky is filled wi... 1
- ______ is a large curve of different colors in the sky that is caused by the sun shining through rain. Correct option isA) rainbow 2
- Which of the following are considered to be as the primary colors? a. Orange, Purple, Green b. Red, Green, Blue Correct answer is d. Red, Yellow, Blue 2
- Define Primary & Secondary colors. Primary colors: These cannot be produced by mixing any other color. These are red, yellow and blue. Secondary colors: These are made by mixi... 1
- How many primary colors are there? Answer: there are three primary colours. For light (additive colours, as in screens and stage lights): red, green and blue. Mixing all three... 1
- What crop was farmed by Lencho? Lencho cultivated (farmed) the corn. 2
- Solve the quadratic equation : x2 + 3x - 9 = 0 for x. Solution: x = −b ± √(b² − 4ac)/2a x = -3 ± √[(3² − 4.1(-9)]/2.1 x = -3 ± √(45)/2 1
- Using integration, find the area of the region bounded by the two parabolas y2 = 4x and x2 = 4y. Answer: 16/3 square units Points of intersection: from x² = 4y , y = x²/4 . Substituting in y² = 4x : fracx⁴16 = 4x\ ⇒\ x(x³ - 64) = 0\ ⇒\ x... 1
- Find the area of the region enclosed by the curves \( y^{2}=x, x=\frac{1}{4}, y=0 \) and \( x=1 \), using integration. Bounded area = ∫limits_(1/4)¹ y dx = ∫limits_(1/4)¹sqrt x dx = 2/3[x^(3/2)]_(1/4)¹ = 2/3(1-1/8) = 7/3×7/8 = 7/12 square units 1
- Find the area enclosed by the curves y=x^2, x=1/4, y=0 and x=1, using integration. Enclosed area = ∫limits ¹_ 1/4 x² dx = [fracx³3]¹₁/4 = 1/3 (1 -frac164) = 63/64 × 3 = 21/64 1
- \( x\left(x^{2}+1\right)^{-1 / 2} \) find dy/dx using chain rule frac ddx x(x² + 1)^frac-12 = xfrac ddx (x² + 1)^frac-12 + dx/dx × (x² + 1)^frac-12 = x× frac-12 (x² + 1)^frac-12-1 d/dx (x² + 1) + (x² + 1)^... 1
- You have purchased an expensive phone of a reputed company from a store in Delhi. Rahul Sharma 123 TT Nagar Delhi Date : 24.06.2022 To, The Manager KMR Mobile Phones Delhi Dear Sir/ Ma'am, Subject : Complaint Regarding My... 1
- रासायनिक अभिक्रियाएँ और समीकरण ✵रसायनिक परिवर्तन को भी रसायनिक अभिक्रिया कहा जाता है। ✵रसायनिक अभिक्रिया के दो भाग होते है , (1) अभिकारक (2) उत्पाद ✵वे पदार्थ जिनमे रसायनि... 1
- Trick for Visible (Dark) and Hidden (Dashed) Lines in Projection of Solids - Engineering Drawing. Many times students get confused which line to be made dark (visible) and which line to be made dashed (hidden). https://www.youtube.com/wat... 2
- The postmaster was a representative of God The postmaster is rightly depicted as a representative of God because he managed to collect money for Lencho who was helpless at that time.... 1
- Read the given anecdote and analyse the similarities and differences with reference to ‘A Letter to God’. The given anecdote is similar to the lesson- ‘A letter to God’ in the following ways- Both Lencho and the woman in the story believed blindl... 1
- As an employee, write about your perspective and reason(s) for contributing to the fund. Of course, an employee can’t say ‘no’ to a helping deed initiated by his/her boss. But, as an employee, I consider it right to help a distre... 1