If cos-23- then 2 2-2 tan 2-7 is equal toa 1b 0c 3d 4

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Mathematics

Range of Trigonometric Ratios from 0 to 90 Degrees

If cosθ=23, t...

Question

If $\cos θ = \frac{2}{3}$ , then 2 sec² θ + 2 tan² θ − 7 is equal to

(a) 1
(b) 0
(c) 3
(d) 4

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Solution

Given that:

We have to find

As we are given

We know that:

Now we have to find: .So

Hence the correct option is

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If cos θ=23, then 2 sec2 θ + 2 tan2 θ − 7 is equal to (a) 1 (b) 0 (c) 3 (d) 4

Given that: We have to find As we are given We know that: Now we have to find: .So Hence the correct option is

If $\cos θ = \frac{2}{3}$ , then 2 sec² θ + 2 tan² θ − 7 is equal to

(a) 1
(b) 0
(c) 3
(d) 4

Given that:

We have to find

As we are given

We know that:

Now we have to find: .So

Hence the correct option is