Question

12. Differentiate (x + 3) * + x(+-)w.r. t. x.
13. If X/1 + y + yv1 + x = 0, for -1 < x < 1, prove that
If y = log(x + V1 + x2), prove that (1 + x2)dy + x
1
(1+x)2
dy
= 0.
dx​

Answer 1

Step-by-step explanation:

DEF is a right angled triangle, right angle at Flet EF=d. FD = e, DE =f and let p be the length of perpendicular from F on DE. Prove that pf = de. answer this question

Answer 2

Answer:

Science is the pursuit and application of knowledge and understanding of the natural and social world following a systematic methodology based on evidence. ... Evidence. Experiment and/or observation as benchmarks for testing hypotheses.