tan80+tan55 /1-tan 80tan55=-1

CBSE, JEE, NEET, CUET

Question Bank, Mock Tests, Exam Papers

NCERT Solutions, Sample Papers, Notes, Videos

Install Now

tan80+tan55 /1-tan 80tan55=-1

Posted by Kunal Verma 7 years, 8 months ago

UP Board > Class 11 > गणित

1 answers

Rashmi Bajpayee 7 years, 8 months ago

${{\tan {{80}^ \circ } + \tan {{55}^ \circ }} \over {1 - \tan {{80}^ \circ }.\tan {{55}^ \circ }}} = - 1$

=> $\tan \left( {{{80}^ \circ } + {{55}^ \circ }} \right) = - 1$

=> $\tan {135^ \circ } = - 1$

=> $\tan \left( {{{90}^ \circ } + {{45}^ \circ }} \right) = - 1$

=> $- \tan {45^ \circ } = - 1$

=> $-1=-1$

Hence proved

2Thank You

ANSWER

Related Questions

Hot budget 20 minut per 23 Chhoti aur Badi sweet tone jaati ji

Posted by Arjun Kumar 3 years, 8 months ago

UP Board > Class 11 > गणित

1 answers

Koi sa bhi kesa bhi puch lete ho

Posted by Mayank Kumar 1 year, 8 months ago

UP Board > Class 11 > गणित

0 answers

Belan ka vakra prasthiy kshetrafal formula

Posted by Himanshu Pal 3 years, 10 months ago

UP Board > Class 11 > गणित

1 answers

1.1 5

Posted by Aman Dahiya 3 years, 1 month ago

UP Board > Class 11 > गणित

1 answers

Hi guys m ye khe raha tha ki bhi sahi se question pucha kero please

Posted by Mayank Kumar 1 year, 8 months ago

UP Board > Class 11 > गणित

0 answers

2+5

Posted by ᴩʀɪᴛɪ ᴍᴀᴜʀyᴀ 3 years, 11 months ago

UP Board > Class 11 > गणित

3 answers

Cosec thita _sinthita =a^3 and sec thita _cos thita = b^3 prove that a^2 b^2(a^2+b^2) =1

Posted by Riya Roy 3 years, 8 months ago

UP Board > Class 11 > गणित

1 answers

a=4,b=12andangleB=30° so sinA=?

Posted by Vibha Kumari 3 years, 8 months ago

UP Board > Class 11 > गणित

1 answers

1= cos15° ka maan batao

Posted by Mayank Kumar 1 year, 8 months ago

UP Board > Class 11 > गणित

0 answers

A_b

Posted by Sadik Sadik Ansari Ji 3 years, 5 months ago

UP Board > Class 11 > गणित

1 answers

myCBSEguide

CBSE, JEE, NEET, CUET

myCBSEguide

Test Generator

CUET Mock Tests

Download myCBSEguide App

All Courses

Other Websites

CBSE Courses

Resources

Corporate

NCERT Solutions

CBSE Sample Papers