Doubtly
@Doubtly · Joined Feb 2021
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- Let A={θϵ(-π/2π):3+2isinθ/1-2isinθ is purely imaginary} then the sum of elements in A is The correct answer is D)2π/3 Detailed answer 1
- Cos190.cos10+sin190.sin10= a)2 b)0 c)-1 d)1 The correct answer is c)-1 Detailed solution 1
- The value of cos π/2^2.cosπ/2^3..... .cosπ/2^10.sinπ/2^10 The correct answer is option B)1/512 Detailed solution 1
- How do I ace the 11th class Maharashtra boards? How do I ace the 11th class Maharashtra boards? Brainiak.in; Points to remeber make a study plan time management optimize syllabus (PYQ) Pre... 1
- The sum of all values of θ ∈ (0, π/2) satisfying sin2 2θ + cos4 2θ = 3/4 is Your answer is here 2
- If 5(tan 2 x−cos 2 x)=2cos2x+9, then the value of cos4x is See the below image , 2
- Explain STACK and QUEUE data structures with suitable examples. Stack data structure : Stack is a linear data structure which follows a particular order in which the operations are performed. 2
- Explain in brief any six data structure operations. The logical or mathematical model of a particular organization of data is called data structure. six type of data structure are :: 1) Traver... 1
- To place the image into an HTML file__________ attribute is used in IMG tag. <src> attribute is used in img tag to insert a image hence , C) <src> is correct option 1
- Question and answer with APJ Abdul kalam | Q1 जब हम जानते हैं कि अंतरिक्ष अनंत है तो अंतरिक्ष की खोज का क्या उपयोग है? Ans } हम आपके ज्ञान का विस्तार करने के लिए जांच की भावना में अंत... 1
- Question and answer by Apj Abdul kalaam By Ajink Gupta Brainiak.in 1
- p and q are the points on the sides AB and AC respectively of a triangle ABC, Here is Your answer hit a like on answer thank you 2
- How do I get 200 plus marks in the JEE Main 2021? 200 is not too difficult in JEE Main. U just need to clarify your concepts. .200 means approximately 66 in each subject. Hardwork and clear... 1
- What are balance band and conduction band? Valence band The band having lower energy than conduction band is the valence band. The electrons in valence band are not free to move becau... 1
- Solve the following equations by Cramer’s method i. 7x + 3y = 15; 12y - 5x = 39 Solving the folllowing equation with crammers method or rule solution of 1 Given: 7x+3y=15 ....(1) 12y-5x=39 ........(2) Equation (1) and (2... 2
- The kinetic energy needed to project a body of mass m from the earth surface (radius R) to infinity is V_(e= √(2gR) _______ Formula of Escape velocity) _( ).^(.). Kinetic Energy = 1over2mv_e²= 1over2m×2gR mgR option C is correct 1
- What is the angular momentum of the electron in the third Bohr orbit in the hydrogen atom? Angular momentum of an electron in the nth Bohr orbit of hydrogen atom L= nh over 2π For n=3 L=3hover 2π L=3×1.055×10⁻³⁴ L=3.165 × 10⁻³⁴ Kg... 1
- The Boolean expression for an AND gate is ____. a) A+B b) A.B c) A+B d) A.B b) A.B is the correct answer 2