Home
Class 10
MATHS
(1 - cot^(2)45^(@))/(1 + cot^(2)45^(@)) ...

`(1 - cot^(2)45^(@))/(1 + cot^(2)45^(@))` =

A

`cos90^(@)`

B

`sin90^(@)`

C

`sin45^(@)`

D

`cos 45^(@)`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRY

    TARGET PUBLICATION|Exercise Additional Problems for Practice (Based on practice Set 6.1)|26 Videos

  • TRIGONOMETRY

    TARGET PUBLICATION|Exercise Based on Practice Set 6.2|13 Videos

  • TRIGONOMETRY

    TARGET PUBLICATION|Exercise Activities for practice|3 Videos

  • STATISTICS

    TARGET PUBLICATION|Exercise Problem Set-6|5 Videos

Similar Questions

Explore conceptually related problems

(cot^2 15^@-1)/(cot^2 15^@+1)=

If x sin 45^(@) cos^(2)60^(@)=(tan^(2)60^(@) cosec 30^(@))/(sec 45^(@) cot^(2) 30^(@)) then x

(1 - cos^(2)theta)cot^(2)theta

(1- tan 2 ^(@) cot 62^(@))/(tan 152^(@) -cot 88^(@))=

cot(45^@+theta)cot(45^@-theta)=

If cosA=mcosB , then ............. A) cot ((A+B)/(2)) =(m+1)/(m-1) tan ((B-A)/(2)) B) tan ((A+B)/(2)) =(m+1)/(m-1) cot ((B-1)/(2)) C) cot ((A+B)/(2)) =(m+1)/(m-1) cot ((B-A)/(2)) D) None of these

Using tables evaluate the following (frac(1-cot^2 60^@)(1+cot^2 60^@))-cos 60^@

sec^(2)(tan^(-1)2) +"cosec"^(2)(cot^(-1)3)=

1+cot^(2)theta= ……

The value of (cot 54^(@))/(tan 36^(@)) + (tan 20^(@))/(cot 70^(@)) is.............. (A) 0 (B) 2 (C) -2 (D) 1