Math, asked by sanjaynadiyapara1907, 1 year ago

cos2 23° - sin2 67°

Answers

Answered by souravchakraborty991

2

Answer:

cos2 23°-sin2 67°

=cos2 (90°-67°) - sin2 67°

=sin2 67°- sin2 67°

=0

Answered by Nitinsingh192

1

Answer:

$\cos2 \: 23 - \sin2 \: 67 \\ \cos2 \: (90 - 67) - \sin2 \: 67 \\ \sin2 \: 67 - \sin2 \: 67 \\ = > 0$

Previous Question

Next Question

Similar questions

Computer Science, 7 months ago

2. To write the HTML coding of the web page given in the following screenshot. ( Refer Page No 314 Figure 1 of your book ) © File GALADAIN/Desktop CLASS-101H2019-20/PropoctHTML html Tes Tartheory medias PLAGIARISM WILAT IS PLAGIARISM? According to the Merrn-webster online dictionary, to "pleasante Eleann laxteal and presentades one's TL. TO SELLISE mother's content with crediting to con una...

Math, 7 months ago

what is the answer?????

English, 7 months ago

स्टोरी का प्लूरल फॉर्म...

Physics, 1 year ago

what is the basic cause of production of sound...

English, 1 year ago

why do we celebrate sanskranti festival...

Science, 1 year ago

what are sinusitis ? write in five managemnt ?

English, 1 year ago

What does the ghost mean when it says”it’s all your fault”? Chapter shady plot...

Math, 1 year ago

What is the missing term in the factored expression? 16m3n3 16m3n4 18m3n3 18m3n4...