sin²30°+cos²60°-tan²45°=-1/2
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3
Tan 45° = 1
sin 30° = 1 / 2
cos 60° = 1 / 2
sec30° = 2/ √3
( 1 ) ² - ( 1/2)² + ( 1/2)²- ( 2/ √3)²
1 - 1 / 4 + 1 / 4 - 4 / 3
1 - 4 / 3
-1 / 3""""
Answered by
1
Answer:
answer will be -1/3 .....
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