Skip to content
Philoid
Browse Saved
Back to chapter
Maths
23. Trigonometric Ratios and Trigonometric Identities
Home · Class 10 · Maths · Ref. Book · 23. Trigonometric Ratios and Trigonometric Identities
Prev
Next
Q7 of 80 Page 295

If cot then let us determine the values of cos A and cosec A and show that 1 + cot2 A = cosec2A.

Given,


⇒


=


[we know that hypothesis2 = perpindicular2 + base2]


⇒ h2 = 7.52 + 42


= 72.25


⇒ h = 8.5


⇒


=


⇒


=


⇒ 1 + cot2A =


=


=


= 1.28


⇒ cosec2A =


=


= 1.28


∴ 1 + cot2A = cosec2A


More from this chapter

All 80 →
5

If cot θ = 2, then let us determine the values of tan θ and sec θ and show that 1+ tan2 θ = sec2 θ.

6

If cos θ = 0.6, then let us show that, (5 sin θ – 3 tan θ) = 0.

8

If then let us write by calculating, the value of cos C × cosec C.

9

Let us write with reason whether the following statements are true or false :

i. The value of tan A is always greater than 1.


ii. The value of cot A is always less than 1.


iii. For an angle θ, it may be possible that


iv. For an angle α, it may be possible that,


v. For an angle β (Beta) it may be possible that,


vi. For an angle θ, it may be possible that,

Questions · 80
23. Trigonometric Ratios and Trigonometric Identities
1 2 3 4 5 6 7 8 9 1 2 3 4 5 5 5 5 5 5 5 5 5 6 6 6 6 6 6 6 7 7 7 8 9 9 10 10 11 1 1 1 2 3 3 3 3 3 3 3 3 3 3 3 3 3 3 4 4 5 5 6 6 6 6 6 6 7 8 9 9 9 9 9 9 9 10 10 10 10 10
Back to chapter
ADVERTISEMENT
About Contact Privacy Terms
Philoid · 2026
  • Home
  • Search
  • Browse
  • Quiz
  • Saved