Skip to content
Philoid
Browse Saved
Back to chapter
Maths
8. Transformation Formulae
Home · Class 11 · Maths · Ref. Book · 8. Transformation Formulae
Prev
Next
Q11 of 90 Page 8

Given,


cosec A + sec A = cosec B + sec B


⇒ sec A – sec B = cosec B – cosec A









{sin (-A) = - sin A}





More from this chapter

All 90 →
9

Prove that:

i.


ii. cos (A + B + C) + cos (A – B + C) + cos (A + B – C) + cos (-A + B + C) = 4 cos A cos B cos C

10

prove that

12

If sin 2A = λ sin 2B, prove that:

13

Prove that:

i.


ii. sin(B– C)cos(A – D) + sin(C – A)cos(B – D) + sin(A – B)cos(C – D) = 0

Questions · 90
8. Transformation Formulae
1 2 3 4 5 5 5 5 5 5 5 5 6 7 8 1 2 2 2 2 2 2 3 3 3 3 3 3 3 3 4 5 6 6 6 6 6 6 6 7 7 7 7 7 8 8 8 8 8 8 8 8 8 8 8 9 10 11 12 13 14 15 16 17 18 19 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 11 12 13 14
Back to chapter
ADVERTISEMENT
About Contact Privacy Terms
Philoid · 2026
  • Home
  • Search
  • Browse
  • Quiz
  • Saved