Use of Trigonometric Table

Q. Verify: $8\sin 2x\cos 4x\sin 6x$, when $x={15}^0$
$\left[2\right]$

Q. Find the value of tan20°15'.
(Refer the trigonometric table for the values)

1. 0.3698
2. 0.3689
3. 0.3965
4. 0.3986

Q. Find the value of sin70°13'.
(Refer the trigonometric table for the values)

1. 0.941
2. 0.9104
3. 0.9401
4. 0.9408

Q. The value of cos69°45' - cos15°40' is .

1. $-$ 0.6168
2. 0.6168
3. $-$ 0.6618
4. 0.6618

Q. Find the value of cos69°45' - cos15°40'.
(Refer the trigonometric table for the values)

1. - 0.6495
2. 0.6495
3. - 0.6618
4. 0.6618

Q. Find the area of the right angled triangle with hypotenuse 5 cm with one of the acute angle equal to 19°59'.
(Refer the trigonometric table for the values)

1. 4.0155592 ${cm}^2$
2. 4.0152955 ${cm}^2$
3. 4.0152559 ${cm}^2$
4. 4.0192555 ${cm}^2$

Q. Find the value of cos19°59'.
(Refer the trigonometric table for the values)

1. 0.9398
2. 0.9938
3. 0.9598
4. 0.9893

Q. Find the value of tan70°13'.
(Refer the trigonometric table for the values)

1. 2.7902
2. 2.7804
3. 3.7802
4. 2.7802

Q. Find the value of tan16°32'.
(Refer the trigonometric table for the values)

1. 0.2986
2. 0.2869
3. 0.2968
4. 0.9268

Q. Find the area of the right angled triangle with hypotenuse 5 cm and one of the acute angle is 48°30'.
(Refer the trigonometric table for the values)

1. 6.2093525 ${cm}^2$
2. 6.2052935 ${cm}^2$
3. 6.3025925 ${cm}^2$
4. 6.2035925 ${cm}^2$