Skip to content
Philoid
Browse Saved
Back to chapter
Maths
8. Introduction to Trigonometry
Home · Class 10 · Maths · Ref. Book · 8. Introduction to Trigonometry
Prev
Next
Q28 of 42 Page 193

If , then prove .

Given that:



∴ we can write,



Multiply both sides by


∴ we get





Hence Proved.


More from this chapter

All 42 →
26

If 4 sin θ = 3, then find the value of x if

27

If . Then find the value of .

29

Prove that (sin θ + sec θ )2 + (cos θ + cosec θ )2 = (1 + sec θ . cosec θ)2.

30

If sin θ + cos θ = p and sec θ + cosec θ = q. Prove that q(p2 – 1) = 2p.

Questions · 42
8. Introduction to Trigonometry
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42
Back to chapter
ADVERTISEMENT
About Contact Privacy Terms
Philoid · 2026
  • Home
  • Search
  • Browse
  • Quiz
  • Saved