Evaluate:

sin 60° + 2 tan 45° - cos-30°

frds solve it​

We know the values of :

sin60° = √3/2

tan45° = 1

cos30° = √3/2

Thereby evaluating, we get :-

√3/2 + 2 × 1 - √3/2

√3/2 + 2 - √3/2

2

answer :

2

Step-by-step explanation: cos(-x) = cos x, so cos(-30)=cos(30) = root3/2.

sin(60) = root3/2.

Also 2tan(45) = 2 x 1 = 2.

Therefore, root3/2 + 2 - root3/2 = 2

4.366

Step-by-step explanation:√3/2+2*1+(√3/2)^2

√3/2+2+3/2

(√3+4+3)/2

(1.732+7)/2

8.732/2

4.366

answer:

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sin60+2tan45-cos30

(1/√2)+2(1)-(1/√2)

=2

Step-by-step explanation:

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answer:

step-by-step explanation:

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in ∆abc

bc² = ac² - ab²

bc² = (13)² - (5)²

bc² = 169 - 25

bc² = 144

bc = √144

bc = 12 cm

★now we have : -

ab = 5 cm , bc = 12 cm and ac = 13 cm

5. sin²a - cos²a

6. sec²c - tan²c

= 1