Learn

QUESTION
Q
If cos Θ + sin Θ = √2 cos Θ, then cos Θ − sin Θ is

Solution

cos Θ + sin Θ = √2 cos Θ squaring on both sides we get (cos Θ + sin Θ)2 = (√2 cos Θ)2 cos2 Θ + sin2 Θ + 2 cosΘ sin Θ = 2 cos2 Θ ⇒ sin2 Θ + 2 cosΘ sin Θ = cos2...

Register & Unlock access to Prep for free

Save & Analyse
your Practice

Learn, Practice &
Improve fast

Improve your
Accuracy

Track & Improve
Scores in all Topics

Session Time
Tracker

Review your
Performance

Insights on others
Performance

View Performance
Reports

Achieve your
Target

Flexible Learning &
Practice

Question Time
Tracker

Improve your
exam scores

Solution

.hez-title-solution{display: none;}

Keynote

cos2 Θ + sin2 Θ = 1 a2 − b2 = (a + b)(a − b)

Study the given information carefully and answer the following questions Twelve people are sitting in two parallel rows containing six people each, in such a way that there is an equal distance between adjacent persons. In row-1 P, Q, R, S, T and V are seated and all of them are facing South. In row-2 A, B, C, D, E and F are seated and all of them are facing…

|||||

Given that Carbon-14 decays at a constant rate in such a way that it reduces to 50% in 5568 years. Find the age of an old wood piece in…

||||

If ‘HARD’ is coded as ‘1357’ and ‘SOFT’ is coded as ‘2468’, what will ‘21448’…

|||||

0 Trigonometry questions available for your Free Practice
0 Quantitative Ability questions available for your Free Practice
Practice 0 questions for Free
Scroll to Top