17 Sec²29° - 17 Cot²61° is equal to
a) 34 b) 0 c) 17 d) 1
Answers
Answered by
2
Answer:
17
Step-by-step explanation:
Cot61=tan(90-61)=tan29
So 17 Sec²29° - 17 Cot²61°
= 17 Sec²29° - 17 tan²29°
= 17(Sec²29-tan²29)
=17x1
=17
Answered by
3
Answer:c)17
Step-by-step explanation
17 sec^2 29°-17 cot 2 61
17 sec^2 29° - 17 cot^2(90°-29°)
17 sec^2 2°9 - 17 tan^2 29°
17(sec^2 29° - tan^2 29°)
17 [Since,sec^2 theta - tan^2 theta=1]
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