if tan theta = 1 find the value of (sec theta + cosec theta)^2
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Answer:
answer is 8
Step-by-step explanation:
theta is 45°
substitute theta value in equation
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Given :
tan∅ = 1
To Find :
The value of (sec∅ + cosec∅)²
Solution :
In order to find the value of (sec∅ + cosec∅)², we need to find the value of ∅ first.
Given, tan∅ = 1
⇒ tan∅ = tan45
∴ ∅ = 45°
The value of ∅ is 45°
Now,
(sec∅ + cosec∅)²
= (sec45 + cosec45)²
= (√2 + √2)²
= (2√2)²
= 4×2
= 8
Hence, the value of (sec∅ + cosec∅)² is 8.
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