Math, asked by richwitch9738, 5 months ago

Evaluate cosec square 67 -tan square 23

Answers

Answered by ghoshpooja0203

1

Answer:

1

Step-by-step explanation:

cosec²67 - tan²23

= cot²67+1 - tan²23 (since, cosec²x= cot²+1)

= 1+ (cot67)² - tan²23

= 1+ (tan23)² - tan²23

= 1+ tan²23-tan²23

= 1

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